Solve the equation for x: 3x^2 -5 = 22
x =3 or x= -3
RM
Related Maths GCSE answers
All answers ▸v = u + at, u = 1 a = -3 t = 1/2, Work out the value of v.
There are two points 'A' and 'B' on a graph, their coordinates are (0,1) and (10,6) respectively. 1)Find the equation of the line that runs through both of these points.2)Find the equation of a line perpendicular to this through point 'B'.
How to solve a quadratic by factorisation?
Write x^2+4x-12 in the form (x+a)^2+b where 'a' and 'b' are constants to be determined.