Expand the expression (3x+2)(3-2x)
9x - 6x2+ 6 - 4x-6x2 + 5x + 6
AH
Related Maths GCSE answers
All answers ▸Show that 12 cos 30° -2 tan 60° can be written in the form square root k where k is an integer.
The nth term of a sequence is 8(2^n + 2^(6n-7)). a) Without a calculator, find the 2nd term of this sequence, b) Express the formula in the form 2^x + 2^y
Solve algebraically the simultaneous equations, giving your answers in terms of b : 3x+by=5, x-y=-2
How to solve Simultaneous Linear Equations, e.g. (4x + 5y = 17) and (3x + 2y = 4)