(5a +4b) ³ Pls help me I promise will mark brainliest Pls trust me and help me
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Answered by
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
Answered by
2
Answer:
125a^3+64b^3+300a^2b+240ab^2
Step-by-step explanation:
given in the attached picture
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