1.

Find the cube of 5a+3b​

Answer»

Answer:

125a³+27b³+ 225a²b +135ab²

Step-by-step EXPLANATION:

(5A+3B)³

(a+b)³=a³+b³+3a²b+3ab²

a=5a. ,b=3b

(5a+ 3b)³ = (5a)³+(3b)³+3(5a)²(3b) +3(5a)(3b)²

=. 125a³+27b³+225a²b +135ab²



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