Question

write it in expanded form

(3a + 4b)^3​

Answer 1

Answer:

ANSWER

(3a+4b)

3

=(3a)

3

+3(3a)

2

(4b)+3(3a)(4b)

2

+(4b)

3

=27a

3

+108a

2

b+144ab

2

+64b

3

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Answer 2

$( {3a + 4b})^{3}$

$x = 3a \\ y = 4b$

$( {3a + 4b})^{3} = ( {3a})^{3} + ( {4b})^{3} + 3(3a)(4b)(3a + 4b) \\ = {27a}^{3} + {64b}^{3} + {108a}^{2}b + {144ab}^{2}$

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