What is 4x (5x-2) = 20x-2

Answer: x = 1.32 and x = 0.076

Step-by-step explanation:

4x (5x-2) = 20x-2

20x^2-8x = 20x-2

20x^2-8x-20x+2=0

20x^2-28x+2=0

Using quadratic equation

x = (-b + or - √ (b^2-4ac)) / 2a

a = 20, b=28, c = 2

Substitute into the equation

x = (7+√39) / 10. = 1.32

x = (7-√39) / 10 = 0.076