How do you factorise quadratic equations by completing the square?
Divide the term in x by 2 and then put it in the bracket which will be squared. The last term from that expansion needs to be adjusted for.
DM
Related Maths GCSE answers
All answers ▸how am I meant to solve sq.root(6^2+8^2) = cube.root(125a^3) when one side is squared and the other is cubed?
if b is two thirds of c. 5a = 4c Work out the ratio a : b : c
2(y+3) = 10. What is y?
Can you solve these simultaneous equations and find the values of x and y? Equation 1: 2x + y = 14 Equation 2: 4x - y = 10.