Question

Solve the absolute value equation for v |v + 8| = -7

Answer 1

Answer:

v1 = -1

v2= -15

Step-by-step explanation:

(|v+8|)²=(-7)²

(v+8)²=49

v²+16v+64=49

v²+16v+64-49=0

v²+16v+15=0

∆(delta)=16²-4.1.15 = 196>0

->.....

Answer 2

Answer:

$|v + 8| \geqslant 0 \: with \: all \: value \: of \: v \\ \\ = > |v + 8| \: cant \: equal \: to \: - 7 \\ \\ = > no \: solution$