Question

Solve, using formula :
x² + x - (a + 2) (a + 1) = 0​

Answer 1

Step-by-step explanation:

x^2+(a+2)x-(a+1)x-(a+2)(a+1)=0

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

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

x=-(a+2). x=a+1