Question

x²+x-20=0 quadratic equations​

Answer 1

Answer:

x^2+5x-4x-20=0

x(x+5)-4(x+5)= 0

x= -5

x=4

Answer 2

x²+(5-4)x-20 =0

x² + 5x - 4x-20 =0

x(x+5) -4 (x+5)= 0

(x+5)=0 or (x-4)=0

therefore either x= -5 or x= 4

or Alpha= -5or beta= 4