Question

Factor:
y^2-7y-30

Answer 1

y^2-7y-30


y^2-10y+3y-30


(y^2-10y)+(3y-30)


y(y-10)+(3y-30)


y(y-10)+3(y-10)


(y+3)(y-10)



So y^2-7y-30 completely factors to (y+3)(y-10)

Answer 2

Note: I broke -7y into -10y+3y because -10 and 3 add to -7 and multiply to -30

Answer 3

thank you!!! :)

Answer 4

you're welcome