Question

xy2k = (4xy + 3y)? - (4xy - 3y)?​

Answer 1

Answer:

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Step-by-step explanation:

Find the value of k if :xy^2 k=(4xy+3y)^2 - (4xy-3y)^2xy

2

k=(4xy+3y)

2

−(4xy−3y)

2

Solution:

By formula, (a + b)^2 - (a - b)^2 = 4 ab(a+b)

2

−(a−b)

2

=4ab

Substitute the above formula in the given expression,

xy^2k = (4xy + 3y)^2 - (4xy - 3y)^2xy

2

k=(4xy+3y)

2

−(4xy−3y)

2

xy^2k = 4 (4xy) (3y)xy

2

k=4(4xy)(3y)

k = 48

To know more:

Find the value of k if: xy²k=(4xy+3y)² -(4xy-3y)²

Answer 2

Answer:

3y)^2

Smartlearning Expert 15th May 2017, 12:32 PM

Accepted Answer:

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