Solve the equation using square roots. x2– 15 = 34

A.+7
B.7
C. no real number solution
D.+49

x=7 and X=-7

Explanation:

x^2-15=34

x^2=49

x=7 and X=-7

x=±7(A)

Step-by-step explanation:

x²-15=34

x²=34+15

x²=49

Taking square root on both sides

x=±7

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2