(2x+3y)cubic.............................
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Answer:
Step-by-step explanation:
→ (2x + 3y)³
→ (a + b)³ = a³ + b³ +3ab(a+b)
→ (2x)³ + (3y)³ + 3(2x)(3y) [2x+3y]
→ 8x³ + 27y³ + 18xy[2x+3y]
→ 8x³ + 27y³ + [18xy × 2x + 18xy × 3y]
→ 8x³ + 27y³ + 36x²y + 54xy²
→ 8x³ + 36x²y + 27y³ + 54xy²
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