Question

Can anyone help me please

Answer 1

`\sf (6x^2-6x-4)-(5x^2-8x-4)`

Distribute -1 in the 2nd parenthesis:


`\sf 6x^2-6x-4-5x^2+8x+4`

Combine like terms:


`\sf 6x^2-5x^2=x^2`


`\sf -6x+8x=2x`


`\sf -4+4=0`

So we have:


`\sf x^2+2x`