Expand and Simplify (2x+3)(3x-3)
First, take the 2x and multiply each term in the second bracket by it to give 2x.3x=6x2 and 2x.-3= -6x. Then multiply each term of the second bracket by +3 to give 3.3x= 9x and 3.-3=-9 . adding all the terms we now have together gives 6x2-6x+9x-9as there is a +9x and -6x gives 3x so now the simplified equation is 6x2+3x-9
CK
Related Maths GCSE answers
All answers ▸Solve the following inequality: 6x -3 > 3x + 9
A ladder of length 6.5m is leaning against a vertical wall. The foot of the ladder is 1.5m from the wall. Calculate the distance the ladder reaches up the wall to 3 significant figures.
Solve for x: 4 x + 1 = 2 x + 12
The circle c has equation x^2+ y^2 = 1. The line l has gradient 3 and intercepts the y axis at the point (0, 1). c and l intersect at two points. Find the co-ordinates of these points.