Question

Simplify the following expression
7x^2 - 15x + 5 - 2x - 8x^2

Answer 1

`\large\boxed{7x^2-15x+5-2x-8x^2=-x^2-17x+5}`

Explanation:

`7x^2-15x+5-2x-8x^2\qquad\text{combine like terms}\\\\=(7x^2-8x^2)+(-15x-2x)+5\\\\=-x^2-17x+5`