Factorise 3x^2+15x

Firstly we need to understand what the question is asking us to do. Factorise means we need to take out the Highest Common Factor (HCF) that each term can be divided by.The two terms in this question is 3x2 and 15x. Separating this into numbers and algebra. HCF of 3 and 15 is 3 and for the algebra x2 and x is x.Putting these back together we get 3x so divide each term by 3x we get x+5. So we have 3x(x+5).

HC

Related Maths GCSE answers

All answers ▸

n is an integer such that 3n + 2 < 14 and 6n/(n^2+5) > 1. Find all possible values of n.


What is Pythagoras' theorem and what can it be used to figure out?


Differentiate the following: 5x^3 + 4x^2 + 3x + 2


There is a quarter circle with radius 8cm, what is the area of the quarter circle. The answer should be given in terms of pi, units are cm^2.