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 ▸A curve has equation y = x^3 - 48x. The point A on the curve has x coordinate -4. Is A a stationary point?
5x+3=2x+9 What is the value of x?
Solve the simultaneous equations 7x - 2y = 22 and 5x + 3y = 29
How to solve the simultaneous equations of 3x + 2y = 9 and x-y = 3