Question

algerical formula expansion of square

Answer 1

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(Algebraic formula of square)

*(a+b)²=a²+2ab+b²

*(a-b)²=a²-2ab+b²

*a²-b²=(a+b)(a-b)

*(x+a)(x+b)=x²+(a+b)x+ab

*(a+b+c)²=a²+b²+c²+2ab+2bc+2ca

*(a-b-c)²=a²+b²+c²-2ab+2bc-2ca

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