Please factorise fully: 2a^2 + 6a

We are factorising 2a2 +6a. When we factorise an expression, we look for common terms that we can place outside of a bracket. Another way of thinking about this is something that both 2a2 and 6a can be divided with.Both 2a2 and 6a can be divided by a, as 2a2/a = 2a and 6a/a = 6. In addition, both 2a^2 and 6a can be divided by 2.Thus we can place 2a outside the bracket, as follows:2a(a +3)Just to check that this factorisation is correct, we will multiply out the brackets as shown below:(2a . a)+(2a . 3) = 2a2 + 6a

MP

Related Maths GCSE answers

All answers ▸

Solve simultaneously 2x-y=2, 3x+2y=17 to calculate values of x and y.


A shape consists of a quarter circle (radius r = 4cm) attached to a triangle (side length = 4cm and hypotenuse = 5cm). This shape is surrounded by a square (side length 8cm). If the shape is coloured in, what is the area in the square that is uncoloured?


There are 11 counters in a bag. 8 of them red, 3 of them green. Neville takes 2 counters from the bag. Work out the probability that Neville takes one counter of each colour.


Find the value of 5x - 3y when x = -2 and y = -4