Question

Add each of the following expression

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Answer 1

Answer:

Answer is 3a³ + b³- c³ - 11abc.

Step-by-step explanation:

SOLUTION

First we add all no.

(a³ + b³ - c³ + 3abc) + ( a³ + b³ + c³ - 6abc) + (a³ - b³ - c³ - 8abc)

a³ + b³ - c³ + 3abc + a³ + b³ + c³ - 6abc + a³ - b³ - c³ - 8abc

a³ + a³ + a³ + b³ + b³ - b³ - c³ + c³ - c³ + 3abc - 6abc - 8abc

3a³ + 2b³ - b³ - 2c³ + c³ - 14abc + 3abc

3a³ + b³ - c³ - 11abc

Answer 2

Answer:

Answer:

23/60 is the answer.

Step-by-step explanation:

SOLUTION

First we take L.C.M of 15 and 20 = 60

=> 11/15 - 7/20

=> 23/60