Solve the following equation: x^2- x - 12 = 0

When looking at this equation, we need to think of two numbers that multiply together to give 12 and have a difference of one. We can rewrite the equation as the following: (x-4)(x+3) = 0 Solving for x:This gives two solutions of x=4 and x=-3

DL

Related Maths GCSE answers

All answers ▸

How do you factorise a quadratic with a co-efficient in front of the x^2 - e.g: 3x^2 + 14x + 8


Solve the following simultaneous equation: 3x+y= 11 and 2x+y=8.


Where does the quadratic formula come from?


Solve the equation: x^2 +8x + 12 = 0