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Simplify the Expression by Combining Any Like Terms $9 x ^ { 2 } - 4 x + 7 + 2 x - 5 + 9 x ^ { 2 }$

Question 87

Multiple Choice

Simplify the expression by combining any like terms.
- $9 x ^ { 2 } - 4 x + 7 + 2 x - 5 + 9 x ^ { 2 }$

A) $18 x ^ { 4 } - 2 x ^ { 2 } + 2$
B) $18 x ^ { 2 } - 2 x + 2$
C) $18 x ^ { 3 }$
D) $16 x ^ { 2 } + 11 x - 9$

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