what is the product of (y+8)(y+1)?

Question

what is the produc tof (y+8)(y+1)? i heard you use foil, but i dont know how

Answer 1

y+8)(y+1)

= y^2 +y +8y+ 8

=y^2+ 9y +8

First

Outside

INside

Last

FOIL means add theproducts 0f First terms,to Outside terms, to Inside terms to Last terms

First terms are y and y

Outside terms are y and 1

inside terms are 8 and y

Last terms are 8 and 1