Question
Asked Jan 31, 2019
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find the mistake
(a+b)^2= a^2+b^2

^2 means squared

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Expert Answer

Step 1

Since

(a+b)2 = (a+b)(a+b)

Step 2

Open the bracket and simplify, we get

(a+b)2 = a2 + ab + ab + b2

(a+b)2 = a...

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