1.

Write down the product of -8x2y6 and -20xy verify the product for x = 2.5, y = 1

Answer»

Let us we solve

= -8 × -20 × x2 × x × y6 × y

= 160 × x2+1 × y6+1

= 160x3y7

Now,

 let us verify when, x = 2.5 and y = 1

For 160x3y7

= 160 (2.5)3 × (1)7

= 16 × 15.625

= 250

For -8x2y6 and -20xy

= -8 × 2.52 × 16 × -20 × 1 × 2.5

= 250

Hence, the given expression is verified.


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