Question

Equação de 2 grau................. ...... E:) (x-5) (x+2)-1=0

Answer 1

(x-5) ( x+2)-1= 0

x²+2x-5x-10-1= 0

x²-3x-11= 0

delta= (-3)²-4.1.(-11)
delta= 9+44
delta= 53

x= (-b ± √delta)/2.a

x= ( 3 ± √53)/2.1

x'= ( 3 + √53)/2

x"= ( 3 - √53)/2