Exam 5: Polynomials, Polynomial Functions, and Factoring

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Multiply using one of the rules for the square of a binomial. Assume any variable exponents represent whole numbers. - (x−4)2( x - 4 ) ^ { 2 }

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Add the polynomials. Assume all variable exponents represent whole numbers. - (18x4+25x3−16x+7)+(−58x4−15x3+13x−9)\left( \frac { 1 } { 8 } x ^ { 4 } + \frac { 2 } { 5 } x ^ { 3 } - \frac { 1 } { 6 } x + 7 \right) + \left( - \frac { 5 } { 8 } x ^ { 4 } - \frac { 1 } { 5 } x ^ { 3 } + \frac { 1 } { 3 } x - 9 \right)

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Factor the greatest common factor from the polynomial. Assume any variable exponents represent whole numbers. - 3x2−6x3 x ^ { 2 } - 6 x

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Subtract the polynomials. Assume all variable exponents represent whole numbers. - (x3+7xy−4y2)−(8x3+4xy+y2)\left( x ^ { 3 } + 7 x y - 4 y ^ { 2 } \right) - \left( 8 x ^ { 3 } + 4 x y + y ^ { 2 } \right)

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Multiply the monomial and the polynomial. Assume any variable exponents represent whole numbers. - −5x5(11x+2)- 5 x ^ { 5 } ( 11 x + 2 )

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Use the graph to estimate the average number of minutes a woman exercised per week if her average monthly weight loss was 4.4 pounds. A) 115 min B) 120 min C) 135 min D) 127 min Answer: B Determine whether the graph shown is the graph of a polynomial function. -Use the graph to estimate the average number of minutes a woman exercised per week if her average monthly weight loss was 4.4 pounds. A) 115 min B) 120 min C) 135 min D) 127 min Answer: B Determine whether the graph shown is the graph of a polynomial function. -

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Multiply using one of the rules for the square of a binomial. Assume any variable exponents represent whole numbers. - (6x2+11y)2\left( 6 x ^ { 2 } + 11 y \right) ^ { 2 }

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Use the Leading Coefficient Test to determine the end behavior of the polynomial function. Then use this end behavior to match the function with its graph. - f(x)=−6x3+3x2+3x+2f ( x ) = - 6 x ^ { 3 } + 3 x ^ { 2 } + 3 x + 2

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Use the FOIL method to multiply the binomials. Assume any variable exponents represent whole numbers. - (4xn+11yn)(xn+9yn)\left( 4 x ^ { n } + 11 y ^ { n } \right) \left( x ^ { n } + 9 y ^ { n } \right)

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Multiply using the rule for the product of the sum and difference of two terms. Assume any variable exponents represent whole numbers. - (8−y5)(8+y5)\left( 8 - y ^ { 5 } \right) \left( 8 + y ^ { 5 } \right)

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Use the Leading Coefficient Test to determine the end behavior of the polynomial function. Then use this end behavior to match the function with its graph. - f(x)=4x4−3x2f ( x ) = 4 x ^ { 4 } - 3 x ^ { 2 }

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Evaluate the polynomial function. -If f(x)=x2−7x+9f ( x ) = x ^ { 2 } - 7 x + 9 , find f(a+3)f ( a + 3 ) .

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Add the polynomials. Assume all variable exponents represent whole numbers. - (−8x7−5x6+2x5+2)+(5x7−8x6+6x5+5)\left( - 8 x ^ { 7 } - 5 x ^ { 6 } + 2 x ^ { 5 } + 2 \right) + \left( 5 x ^ { 7 } - 8 x ^ { 6 } + 6 x ^ { 5 } + 5 \right)

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Use the FOIL method to multiply the binomials. Assume any variable exponents represent whole numbers. - (9x−y)(7x−12y)( 9 x - y ) ( 7 x - 12 y )

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Find the indicated function value. -Find f(−1)f ( - 1 ) when f(x)=5x2−3x+6f ( x ) = 5 x ^ { 2 } - 3 x + 6

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Factor the greatest common factor from the polynomial. Assume any variable exponents represent whole numbers. - 14x2y3−16xy214 x ^ { 2 } y ^ { 3 } - 16 x y ^ { 2 }

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Subtract the polynomials. Assume all variable exponents represent whole numbers. -Subtract 5a2b4+8ab2−ab5 a ^ { 2 } b ^ { 4 } + 8 a b ^ { 2 } - a b from −9a2b4+4ab2+7ab- 9 a ^ { 2 } b ^ { 4 } + 4 a b ^ { 2 } + 7 a b

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Find the product. Assume all variable exponents represent whole numbers. - (2x2+5x−4)(x2+4x−4)\left( 2 x ^ { 2 } + 5 x - 4 \right) \left( x ^ { 2 } + 4 x - 4 \right)

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Multiply using the rule for the product of the sum and difference of two terms. Assume any variable exponents represent whole numbers. - (x+12)(x−12)( x + 12 ) ( x - 12 )

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Use the FOIL method to multiply the binomials. Assume any variable exponents represent whole numbers. - (5x−2)(3x−4)( 5 x - 2 ) ( 3 x - 4 )

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