Question

(2y + 3)^2 = 25

Answer 1

squareroot both sides first

Answer 2

\[(2y + 3)^2 = 25\]

Answer 3

\[(2y + 3) = \pm \sqrt{25}\]

Answer 4

\[(2y+3) = \pm 5\]

Answer 5

Good.. Go ahead, so what are the two values y could take?

Answer 6

then subtract 3 from both sides

Answer 7

I mean this is a quadratic so we should have two answers for y

Answer 8

squareroot both sides?

Answer 9

You don't know what square root means?

Answer 10

I know.

Answer 11

but, wait wait.

Answer 12

ok, then, 5(2y + 3) = 0 ?

Answer 13

No you are trying to solve for y. which means you are trying to isolate it. Make y be by itself.

Also that sign next to the 5 is a plus or minus. Which means that 5 is both a negative and positive. You can rewrite in the for of

\[2y + 3=\pm 5\]

rewrite it into it's two separate equations one positive and one negative

\[2y + 3=+5\]
\[2y + 3=-5\]

Now solve for y for those two equations.