Question

(5a +4b) ³ Pls help me I promise will mark brainliest Pls trust me and help me ​

Answer 1

Answer:

(a+b)³=a³+b³+3ab(a+b)

a=5a

b=4b

(5a+4b)³=(5a)³+(4b)³+3(5a)(4b)(5a+4b)

= 125a³+64b³+60ab(5a+4b). (5a+4b)³ = 125a³+64b³+300a²b+240ab²

Answer 2

Answer:

125a^3+64b^3+300a^2b+240ab^2

Step-by-step explanation:

given in the attached picture

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