Question

Solve the equation by finding square roots.
3x^2=21
a.7 squared
b.7squared,-7squared
c.-21squared/3,21squared/3
d.-7squared,21squared.

Answer 1

I don't entirely understand what it's asking with those answers, but
\[x=\pm\sqrt7\]

Answer 2

it would be B im guessing

Answer 3

well, b says
\[7^2, -7^2\]
which is the opposite of what x equals O_o

Answer 4

Then A??

Answer 5

wait wouldnt it be c. since those numbers divided would equael +-7

Answer 6

It's probably B. They just worded it wrong, i'd bet.

Answer 7

Ok Thank you

Answer 8

+/-sqrt7