expand i)x+2y to the power of 3
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Answer:
x³ + 8y³ + 6x²y + 12xy²
Step-by-step explanation:
Using the identity, [ (x+y)³ = x³ + y³ + 3x²y + 3xy² ]
(x+2y)³ = x³ + 8y³ + 3(x)²(2y) + 3(x)(2y)² = x³ + 8y³ + 6x²y + 12xy²
Hope this helps.....
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