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 ▸There are 11 pens in a bag, 4 Green and 7 Blue. What is the probability of picking the same coloured pens?
Solve the simultaneous equations 3x + y = –4 and 3x – 4y = 6
A ladder 6.2m long is leaning against a wall. The bottom of the ladder is 0.8m from the wall. Calculate the distance the ladder reaches up the wall, giving your answer to two decimal points.
Given the function f(x) = 2x^(2) + 3, find the value of x when f(x) = 53.