Question

Solve the equation using square roots x^2+20=4

Answer 1

Answer:

Step-by-step explanation:

x^2+20=4 first isolate the variable by subtracting 20 on both sides.

x^2=-16 again isolate the variable but this time you square root both sides.

$\sqrt{x}^2$=$\sqrt{-16$ then simplify

x= ±4