Question

X^2-x=20 solve this equation.

Answer 1

Answer:

-4 and 5

Step-by-step explanation:

${x}^{2} - x = 20 \\ {x}^{2} - x - 20 = 0 \\ {x}^{2} - 5x + 4x - 20 = 0 \\ x( x - 5) + 4(x - 5) = 0 \\ x + 4 = 0 \: \: \: \: x - 5 = 0 \\ x = - 4 \: \: \: \: \: \: \: \: \: x = 5$