okay so i have to find the product of this problem:
(x+5)(x+4)
i literally have no idea what to do. my first answer was 9x5+26x4 but it was wrong.
so wasn't 10x5+3. help?!?!
(x+5)(x+4)
i literally have no idea what to do. my first answer was 9x5+26x4 but it was wrong.
so wasn't 10x5+3. help?!?!
-
(x + 5)(x + 4)
= x(x + 4) + 5(x + 4)
= x² + 4x + 5x + 20
= x² + 9x + 20
----
= x(x + 4) + 5(x + 4)
= x² + 4x + 5x + 20
= x² + 9x + 20
----
-
x*x=x^2
x*4=4x
5*x=5x
5*4=20
Add them all:
(x^2)+9x+20
x*4=4x
5*x=5x
5*4=20
Add them all:
(x^2)+9x+20