Answer: 7x² + 12x - 6
Explanation:
P(x) + Q(x)
=[5x² + 12x - 10] + [2x² + 4]
=[5x² + 2x²] + 12x + [4 - 10]
= 7x² + 12x - 6
Answer:
7x² + 12x - 6
the sum of P(x) and Q(x) means add them together, that is
= 5x² + 12x - 10 + 2x² + 4 ← collect like terms
= (5x² + 2x² ) + 12x + (- 10 + 4)
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