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grade 9 · A1-013
Add polynomials
Combine only terms with matching variable parts and exponents.
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Fresh problem · seed 1180820073
Simplify \((5x^{2} + 7x + 8)+(4x^{2} - 9x - 8)\).
x
2
x
constant
5
7
8
4
-9
-8
Choose an answer
\(9x^{2} - 2x + 16\)
\(9x^{2} - 2x\)
\(20x^{2} - 63x - 64\)
\(9x^{2} + 16x\)