Question

(4a +5a)3
$(4a + 5a)3$
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Answer 1

Answer:

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64a³ + 125b³ + 240a²b + 300ab²

Step-by-step explanation:

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(4a + 5b)³

=> (4a)³ + (5b)³ + 3(4a)(5b) (4a+5b)

=> 64a³ + 125b³ + 60ab(4a+5b)

=> 64a³ + 125b³ + 240a²b + 300ab²

Hope this helps.....

Answer 2

Answer:

(4a+5a)³

(4a)³+(5a)³+3×4a×5a(4a+5a)

64a³+125a³+60a²(9a)

64a³+125a³+54a³

243a³

Here's your answer..

Hope it helps you..

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