Question

multiply and verify the result when x is =1,y=2 (x+y)(x square +2xy+y square​

Answer 1

Step-by-step explanation:

(x+y)(x²+2xy+y²)

(x+y)(x+y)² {x²+2xy+y²=(x+y)²}

(x+y)³

(1+2)³

3³

27

VERIFICATION:

(x+y)(x²+2xy+y²)

(1+2)(1²+2×1×2+2²)

3(1+4+4)

3×9

27

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