Question

Solve x2 – 64 = 0.

Isolate x2: x2 = 64

Apply the square root property of equality: StartRoot x squared EndRoot = plus or minus StartRoot 64 EndRoot

Isolate the variable:

x =

x =

Answer 1

Answer:

x = ± 8

Step-by-step explanation:

Given equation: $x^{2}$ - 64 = 0

$x^{2}$ - 64 = 0

$x^{2}$ = 64

x = ± $\sqrt{64\\}$ = ± 8

Answer 2

Answer:

x^2-64=0

x^2 =64

x^2 =8^2

thus x =8