Question

5x(x-4)-2(2x²-7x)=-8​

Answer 1

5x (x - 4) - 2 (2x² - 7x) = - 8

5x² - 20 - 4x² + 14x = - 8

5x² - 4x² - 20x + 14x = - 8

x² - 20x + 14x = - 8

x² - 6x = - 8

x² - 6x + 8 = 0

x² - 2x - 4x + 8 = 0

x (x - 2) - 4 (x - 2) = 0

(x - 4) (x - 2) = 0

x - 4 = 0

x = 0 + 4

(x = 4)

x - 2 = 0

x = 0 + 2

(x = 2)