Question

(3x – 5 – 7x2) – (–2 + 6x2 – 5x)

Answer 1

8x-13x²-3

Explanation:

you first have to work with the negative sign and the brackets by multiplying the negative sign by everything in the second brackets

3x-5-7x²+2-6x²+5x

then group the like terms

3x+5x-7x²-6x²+2-5

8x-13x²-3

I hope this helps