Multiply the binomials: $( 3x-7y)( 7x+2y)$

Given: Binomials: $( 3x-7y)( 7x+2y)$

To do: To multiply the given binomials.

Solution:

Given binomials: $( 3x-7y)( 7x+2y)$

$=3x\times7x+3x\times2y-7y\times7x-7y\times2y$

$=21x^2+6xy-49xy-14y^2$

$=21x^2-43xy-14y^2$

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Updated on: 10-Oct-2022

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