find the cube of 2x-5y
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Answer:
250y³-120x²y
Step-by-step explanation:
Maths AryaBhatta
Hey there!
(2x-5y)³-(2x+5y)³
=8x³-125y³-3*2x*5y(2x-5y)-[8x³+125y³+3*2x*5y(2x+5y)]
=8x³-125y³-3*2x*5y(2x-5y)-8x³-125y³-3*2x*5y(2x+5y)]
=-250y³-60x²y+150xy²-60x²y-150xy²
=-250y³-120x²y
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