Math, asked by khanamtasneem18, 1 month ago

Ex-13
Find the cube of
2a+3b

Answers

Answered by ankitraj761

0

Answer:

8a^3 - 27b^3 - 36 ^a2b + 36 ab^2

Step-by-step explanation:

using identity : (a-b)^3 = a^3 - b^3 - 3ab(a-b)

(2a-3b)^3

=(2a)^3-(3b)^3-3.2a.3b.(2a-3b)

=8a^3-27b^3-18ab(2a-3b)

=8a^3-27b^3-36a^2b+54ab^2

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