2x^2 - 16x + 32
Solution: x=4. This can be shown by factorisation or applying the quadratic formula.
NO
Related Maths GCSE answers
All answers ▸Solve the simultaneous equations 2x + 3y = 4, 3x + 6y = 3
At what points does the line y = x +1 intersect the circle x^2 + y^2 + 18x + 20y + 81 = 0.
x/x-1 - x/x+1 simplify
Point A has coordinates (-1,3). Point B has coordinates (2,-3). Find the equation of the line L that goes through these two points. Point C has coordinates (0,1). Hence or otherwise, find the equation of the line perpendicular to L that goes through C.