Question

x2-x+20=0 using quadratic formula

Answer 1

x²+x-20

=> x²+5x-4x-20

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

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

=> x= 4,-5

Hope it helps..!!✌

Answer 2

x²+x-20

=> x²+5x-4x-20

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

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

=> x= 4,-5

Hope it helps..!!✌