Question

(6y^2-9y+4)-(-7y^2+5y+1)

Answer 1

Answer and explanation:

$(6y^2-9y+4)-(-7y^2+5y+1)$ multiply the - into $-7y^2+5y+1$

$6y^2-9y+4+7y^2-5y-1$  Now add, or subtract, everything together.

$(13y^2-14y+3)$ Answer