Simplify
- (2x +3y)^3
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Answer:
- 8x³-27y³-36x²y-54xy²
Step-by-step explanation:
(a+b)³ = a³+b³+3a²b+3ab²
Using this formula
- (2x +3y)³ = - [(2x)³+(3y)³+3(2x)²(3y)+3(2x)(3y)²]
= - [8x³+27y³+36x²y+54xy²]
= - 8x³-27y³-36x²y-54xy²
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