Question

Solve. 3x^2 – 48 = 0

a. x = 3 and x = 16
b. x = 4 and x = –4
c. x = 16 and x = 4
d. x = 4 and x = 3

Answer 1

\[3x^2 – 48 = 0 \]\[3x^2 = 48\]\[x^2= 48/3\]\[x^2=16\]\[x=\pm \sqrt{16}\]\[x=\pm 4\]

So the answer is b.

Answer 2

its corect 100%

Answer 3

thank u, i understand now