simplify 3x - 4 y whole square
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(3x-4y)²
= (3x)²-2(3x)(4y)+(4y)²
= 9x²-24xy+16y²
= (3x)²-2(3x)(4y)+(4y)²
= 9x²-24xy+16y²
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Heya ☺
(3x - 4y)^2
We apply this formula
(a-b)^2 = a^2 + b^2 - 2ab
(3x - 4y)^2
= (3x)^2 + (4y)^2 - 2 × 3x × 4y
= 9x^2 + 16y^2 - 24xy
Thanks
(3x - 4y)^2
We apply this formula
(a-b)^2 = a^2 + b^2 - 2ab
(3x - 4y)^2
= (3x)^2 + (4y)^2 - 2 × 3x × 4y
= 9x^2 + 16y^2 - 24xy
Thanks
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