Question

multiply. (x+5)^2

Answer 1

x^2 + 10x + 25

Answer 2

(a+b)^2=a^2+2ab+b^2

Answer 3

so by using that method...you would get that answer x^2+10x+25?

Answer 4

ya

Answer 5

Instead of a put x and instead of b put 5 then u vl get that answer.

Answer 6

multiply (y+4)(y-5)

Answer 7

(x-a)(x-b)=x^2-ax-bx+ab
=x^2-(a+b)x+ab
Here x=y, a=-4, b=5
Nw see if u can get the answer.

Answer 8

use these formula
\[(a+b)^{2}=a ^{2}+2ab+b ^{?}\]

the answer is

\[( x+5)^{2}=x ^{2}+5*2x+25\]

\[( x+5)^{2}=x ^{2}+10x+25\]

Answer 9

aren't you supposed to foil as well? this math online home work is overly picky.