Question

expand: (3a – 4b)³ please answer​

Answer 1

${(3a - 4b)}^{3} \\ =$

we know that, (a-b)^3

${a}^{3} - {b}^{3} - 3a {}^{2}b + 3a {b}^{2}$

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Shrawan❣️

Answer 2

ANSWER:

(a-b)^3= a^3 - b^3 -3ab(a-b)

(3a-4b)^3 = (3a)^3 - (4b)^3 -3(3a)(4b)

(3a-4b)

=27a^3 - 64b^3 - 36ab(3a-4b)

=27a^3 - 64b^3 - 108a^2b + 144ab^2.