bethers
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# what is the answer to 21=(x+3)2

First, distribute 2 to the (x+3) to get: 21 = 2x+6 subtract 6 from both sides to get: 15 = 2x Finally, we divide both sides by 2 to simplify x to: x = 7.5 (OR) x = $7 \frac{1}{2}$ (Just so you know, if you pick a brainliest answer, both you and the person who got the brainliest answer get some points.