please guys tell how to solve this equation
8(x+y)³+27(x-y)³
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Answered by
1
Step-by-step explanation:
see the answer in attachment
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Answered by
1
Answer:
35x³+35x³-57x²y+105xy²
Step-by-step explanation:
8(x+y)³+27(x-y)³
=8(x³+y³+3x²y+3xy²)+27(x³+y³-3x²y+3xy²)
=8x³+8y³+24x²y+24xy²+27x³+27y³-81x²y+81xy²
=8x³+27x³+8y³+27y³+24x²y-81x²y+24xy²+81xy²
=35x³+35x³-57x²y+105xy²
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