I need some help.. the example on my homework is not cutting it.

Multiply (4s-3)(s+5)

I used F.O.I.L but it did not come out correct for some reason.

Question

I need some help.. the example on my homework is not cutting it. 

Multiply (4s-3)(s+5)

I used F.O.I.L but it did not come out correct for some reason.

cwrw238 · Answer

no need for FOIL - multiply terms in second parentheses by 4s and then by -3

= 4s*s + 5*4s -3*s - 3*5

now simplify

anonymous · Answer

I got those and then I combined like terms and it said it was wrong. I got 4s^2+20s-3s-15 and then came up with 4s^2+17s-15

anonymous · Answer

Never mind it was a typo. Thanks got it now!

cwrw238 · Answer

yw