Math, asked by ojaswisai8, 1 day ago

(3x-2y-4)(3x-2y-4) expand​

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Answered by Sammfisher
1

(3x-2y-4)(3x-2y-4)\\\\=(3x-2y -4 )^2\\\\=[(3x-2y) -4 ]^2\\\\=(3x-2y)^2 - 2\cdot 4(3x-2y) +4 ^2 \\\\=9x^2 - 2\cdot 3x \cdot 2y + 4y^2-24x+16y+16\\\\=9x^2+4y^2 -24x +16y - 12xy +16\\

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