Solve 5(x+2)2−20=05(x + $$2)^2 - 20 = 0 by $$isolating the squared term.

The Square Root Property

12. Quadratic Equations and Functions / The Square Root Property / 문제 4

문제 4

Solve $5 (x + 2)^{2} - 20 = 0$ by isolating the squared term.

No real solutions

$x equals 2$ or $x = - 4$

$x=2$ or $x equals 0$

$x = - 4$ or $x=0$