Solve 4x^2 - 3x - 4 = 0

There are two different methods of solving this equation and it is important to find the method that you find easiest.

The first method is to split up the numbers and the letters on both sides of the equation. The second methods is to factorise the equation.

(2x+1)(2x-4) = 0 x=-0.5 or +2

OH

Related Maths GCSE answers

All answers ▸

Solve the equation x^2-9x+20=0


Factorise x^2+6x+8


We have two straight lines AB and CD. The coordinates of A,B and C are A(1,3), B(5,9) and C(0,8). The point D lies on the line AB and is halfway between points A and B. Is the line CD perpendicular to AB?


The equation of the line L1 is y = 3x – 2 The equation of the line L2 is 3y – 9x + 5 = 0 Show that these two lines are parallel.