(a+ b) whole square
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In this section, you will learn the formula or expansion for (a - b)2. That is, (a - b)2 = (a - b)(a - b) (a - b)2 = a2 - ab - ab + b2.
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Answer:
a2+b2+2ab
Step-by-step explanation:
Because when we open the bravkets and multiply
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