Question

(x + y + 3)(x + y - 4)

Answer 1

you have nine multiplications to do

Answer 2

first multiply everything in the expression \(x+y-4\) by \(x\) then by \(y\) then by 3 and finally combine like terms

Answer 3

i can write it if you like

Answer 4

yes please (:

Answer 5

ok were we go
\[(x + y + 3)(x + y - 4)\]\[=x^2+xy-4x+xy+y^2-4y+3x+3y-12\] is it clear what i did? not done yet because you still have to combine like terms

Answer 6

first i multiplied everything by \(x\) to get \(x^2+xy-4x\)
then by \(y\) to get \(xy+y^2-4y\)
and then by 3 to get \(3x+3x-12\)

Answer 7

thanks

Answer 8

can you combine like terms that way i can see if i do it right please and thank you