Question

X(x+1)-16=56 kaysa ayega

Answer 1

Answer:

Step-by-step explanation:

x^2+x-16-56=0

x^2+x-72=0

x^2-8x+9x-72=0

x(x-8)+9(x-8)=0

(x-8)(x+9)=0

x-8=0

x=8

x+9=0

x=-9

x(x+1)-16

when x=8

8(8+1)-16

8×9-16

72-16=56

when x=-9

-9(-9+1)-16

-9×-8-16

72-16=56