Question

X2-16= -2x - 1 Please help

Answer 1

Answer:

The solutions are -5 and 3.

Step-by-step explanation:

$x^2 - 16 = -2x-1$

$x^2 - 16 +2x+1=0$

$x^2 +2x-15=0$

Factoring the quadratic expression:

$(x+5)(x-3)= x^2 +2x-15=0$

So,

$x+5 = 0 \implies x =-5$

$x-3 = 0 \implies x =3$