Question

(5x-3y)3 expand using formulae

Answer 1

Answer:

Step-by-step explanation:

(a-b)³ = a³ - 3a²b + 3ab² -b³

(5x - 3y)³ = (5x)³ - 3(5x)²(3y) + 3(5x)(3y)² - (3y)³

= 125x³ - 225x²y + 135xy² - 27y³

Answer 2

15x-9y

Divide this statement by 3 because both are the factor of 3.

5x-3y=1

5x-y= 1/3

x-y=1/3÷5

x-y=3÷5

x-y=0.6

Hence,

x-y=0.6