SOLUTION: I try to figure out this one but still don't get it. My answer still not match from the textbook. Please help! If each side of a square is increased by 5 cm, the total area of b

Question 1066869: I try to figure out this one but still don't get it. My answer still not match from the textbook. Please help!
If each side of a square is increased by 5 cm, the total area of both the new square and the original square will be 200 cm2. Approximate to the nearest tenth of a centimeter the length of each side of the original square.

Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Again?
??

SOLVE FOR x. If you do it well, you should trust your efforts & your work.

Maybe factorable or maybe not. Use general solution to quadratic equation if you want to avoid trying to factorize.

Discriminant:

You want the PLUS form for x.

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