Question

Can someone please help me with this question befor 9:20

Answer 1

The question requires you to perform addition and subtraction the polynomial given;

`(-10x^2+9)\text{ +}(8x^2-5x\text{ +7})`
`-10x^2+8x^2-5x+9+7^{}^{}`

after collecting the like terms, solve as;

`-2x^2\text{ -5x + 16}`