emilylewis16 emilylewis16

23-11-2016
Mathematics

Answered

How do i factorise

15x - 10x^3

and

9x^2 + 3x^3 ?

Verified Answer :

bartdrinksmalk bartdrinksmalk

23-11-2016

\(15x-10x^{3}\) has common factor \(5x\)
which gives
\(5x(3-2x^{2})\)

\(9x^{2}+3x^{3}\) has common factor \(3x^{2}\)
which gives
\(3x^{2}(3+x)\)

Answer Link

claireroche1 claireroche1

23-11-2016

You find the highest common factor, in the first one this is 5x
5x(3-2x^2)
For the second it's 3x
3x(3x+x^2)

Answer Link

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