Find
a. (a+b) × (a+b) = ?
b. (a+b) × (a-b) = ?
c. (a-b) × (a-b) = ?
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1
Answer:
(a+b)=a^2+b^2+2ab
(a+b) ×(a-b)= a^ 2+b^2-2ab
(a-b)×(a-b)= (a^2-b^2)
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