(2a + 3b)^3
Evaluate
shadowsabers03:
Oh, it seems three are answering for me!!!
Answers
Answered by
21
Here first we have to know the formula.
Solving it by identity :
( a + b )³ = a³ + 3a²b + 3ab² + b³
So here given that :
a = 2a
b = 3b
Then According to identity :
( 2a + 3b)³ = (2a) ³ + 3 * (2a) ² * 3b + 3 * 2a * (3b) ² + (3b) ³
( 2a + 3b ) ³ = 8a³ + 36a²b + 54ab² + 27b³
Here is your equation of ( 2a + 3b)³ is 8a³ + 36a²b + 54ab² + 27b³
Hope it helpful to you mate if you satisfy then please mark me as brainlest ☺ ✌ ✌
Answered by
15
Answer:
Step-by-step explanation:
Its an algebraic identity.
Let's prove this.
We know that
So, we have
This proves the above algebraic identity.
The evaluation of (2a + 3b)³ will also be done using this identity.
Let's do it...
That's the answer to your question.
Thanks!
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