Answer:
25x^2 -40x + 16
Step-by-step explanation:
(5x-4)^2
(5x-4)(5x-4)
FOIL
first 5x*5x =25x^2
outer 5x*-4 = -20x
inner 5x*-4 = -20x
last = -4*-4 = 16
Add them together
25x^2 -20x -20x+ 16
Combine like terms
25x^2 -40x + 16
Answer:
m=-3
Step-by-step explanation:
m2-9=0
2 divied by 9 =3
when you have a positive number and a negitive number =a negitive
I think you get the point