Question

I do not know how to solve these equations please help

Answer 1

Answer: 7x² + 12x - 6

Explanation:

P(x) + Q(x)

=[5x² + 12x - 10] + [2x² + 4]

=[5x² + 2x²] + 12x + [4 - 10]

= 7x² + 12x - 6

Answer 2

7x² + 12x - 6

Explanation:

the sum of P(x) and Q(x) means add them together, that is

P(x) + Q(x)

= 5x² + 12x - 10 + 2x² + 4 ← collect like terms

= (5x² + 2x² ) + 12x + (- 10 + 4)

= 7x² + 12x - 6