Question

Write down the product of -8x^2y^6 and -20xy verify the product for x=2.5 and y=1

Answer 1

Answer:

$- 8 {x}^{2} {y}^{6} ( - 20xy) \\ = 160 {x}^{3} {y}^{7}$

According to the question x=2.5, y=1.

so value of product

=160×2.5×2.5×2.5×1×1×1×1×1×1×1

=2500

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value of

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value of

$- 8 {x}^{2} {y}^{6}$

-8×2.5×2.5×1×1×1×1×1×1

=-50

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Value of

$- 20xy$

=-20×2.5×1

=-50

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So,

2500=-50×-50

2500=2500

LHS=RHS

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