Question

plzzz do step by step explaination ...it contains 4marks​

Answer 1

Answer:

Idk what the final answer is...but hope this gives you some idea

Step-by-step explanation:

Answer 2

Answer:

$3(-a^{2} b + ab^{2} - b^{2} c + bc^{2} - c^{2} a + ca^{2} )$

Step-by-step explanation:

For Getting this Answer, you need to solve the terms individually...

• ( a - b )³ = a³ - 3a²b + 3ab² - b³
• ( b - c )³ = b³ - 3b²c + 3bc² - c³
• ( c - a )³ = c³ - 3c²a + 3ca² - a³

After getting this result, frame them replacing the result you received instead of the terms to be cubed...

(a³ - 3a²b + 3ab² - b³) + (b³ - 3b²c + 3bc² - c³) + (c³ - 3c²a + 3ca² - a³)

        As a³, b³ & c³ have got their conjugate, they will be canceled away and the result will be,

= {(- 3a²b + 3ab²) + (- 3b²c + 3bc²) + (- 3c²a + 3ca²)}

         Taking 3 as common,

= $3(-a^{2} b + ab^{2} - b^{2} c + bc^{2} - c^{2} a + ca^{2} )$

OR, You can take the method with I have used in the Attachment!!!!

Here You GO!!!!

Hope you have understood my method and the way of answering!!!