Question

(i) (5x - 3y)³ expand​

Answer 1

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Answer 2

Answer:

(5x−3y) ^3

We know that

(a−b) ^3 =a ^3 −b ^3 −3ab(a−b)

Therefore,

(5x−3y) ^3

=(5x) ^3 −(3y) ^2 −3×5x×3y(5x−3y)

=125x ^3 −27y ^3 −45xy(5x−3y)

=125x ^3 −27y ^3 −225x ^2y +135xy ^2

Hence, this is the answer.

Step-by-step explanation:

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