Answer:
x^2+8x+16
(x+4)^2
Step-by-step explanation:
x^2 +8x
Take the coefficient of the x term
8
Divide by 2
8/2 =4
Square it
4^2 =16
x^2+8x+16
We can factor it into
(x+8/2) ^2
(x+4)^2
Answer:
-19
Step-by-step explanation:
It's -19 I took the test
Proof in the picture below
1) 38cm
2) 2304cm^2
3) 64cm^2
To find the area you multiply the sides
To find the perimeter you add the sides
Answer:
74
Step-by-step explanation:
fg(x)=f[g(x)]
=f(-4x+7)
=3(-4x+7)+5
=-12x+26
When x=-4,
fg(-4)=-12(-4)+26
=74