Math, asked by singhsamardeep28, 11 months ago

Factorise the expression (2x + 3y) cube

Answers

Answered by naheedar12

2

By using the identity

{ (a - b)³ = a³ - b³ - 3a²b + 3ab²}

==> (2x - 3y)³ = (2x)³ - (3y)³ - 3(2x)²(3y) + 3(2x)(3y)²

==> 8x³ - 27y³ - 36x²y + 54xy²

==> 8x³ - 9y( 3y² - 4x² + 6xy)

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