8(3x-4y)^3-125(2x+y)^3
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-784 x^3 - 2364 x^2 y + 402 x y^2 - 637 y^3
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Given : 8(3x - 4y)³ - 125(2x +y)³
First u can bring them In an actual state...
that is .
.U can write a³- b³ as (a - b) (a²+ab +b²)
(2(3x - 4y)- 5(2x + y)) * 4(3x - 4y) * 5(2n + y) + 25(2x + y)²)
= 6x - 8y - 5(2x + y)) * 4(3x - 4y)²
+2(3x - 4y)* 5(2x +y) + 25 (2x + y)²)
=(6x - 8y -10x - 5y) * (4*(9x² -24xy + 16y²) + 2(3x - 4y) * 5(2x + y) + 25(2x + y²)
=(6x - 8y -10x -5y)* (4(9x² - 24 xy +16y²) + 10(3x - 4y) * (2x + y) +25(2x +y)²)
= (-4x -13y)* (36x² -96xy +64y²) + (30 x-40y)*(2x+ y)+ 100x² +100xy +25y²)
= (-4x - 13y) (196x² - 46xy + 49y²)
Please mark me as Brainliest.....hope this helps u!
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