Question

Simplify: a) 2p3 – 3p2 + 4p -5 -6p3 + 2p2 – 8p -2 + 6p + 8

Answer 1

Answer:

Method 1 :-

2p3 – 3p2 + 4p -5 - 6p3 + 2p2 – 8p -2 + 6p + 8

2p3 - 6p3 - 3p2 + 2p2 + 4p - 8p + 6p - 5 - 2 + 8

-3p3 - p3 - 2p + 1

Method 2 :-

If we taken 2p3 – 3p2 + 4p -5 ; 6p3 + 2p2 – 8p -2 + 6p + 8 ( Subtract )

2p3 – 3p2 + 4p -5 - 6p3 + 2p2 – 8p -2 + 6p + 8 ( All signs will change after 6p3 )

2p3 - 6p3 - 3p2 - 2p2 + 4p + 8p - 6p - 5 + 2 - 8

3p3 - 5p2 + 6p - 11

I don't know which answer is write that's why i have given you the 2 methods......