Question

solve by factoring 25x^2 -20x +4 =0

Answer 1

looks like it might be a perfect square

Answer 2

(5x-2)^2

Answer 3

Write the quadratic equation in standard form.
Divide both sides by 25:
x^2-(4 x)/5+4/25 = 0
Factor the left hand side.
Write the left hand side as a square:
(x-2/5)^2 = 0
Eliminate the exponent on the left hand side.
Take the square root of both sides:
x-2/5 = 0
Solve for x.
Add 2/5 to both sides:
Answer: |
| x = 2/5

Answer 4

thank you!