Answers>Maths>GCSE>Article

Solve the equation x^2 - 8x + 5 = 0 by completing the square

x²- 8x + 5 = 0 => (x²- 8x + 16) - 11 = 0 =>(x - 4)² = 11 =>x - 4 = +- sqrt(11) =>x = 4 +- sqrt(11)

DH

Answered by Dom H. • Maths tutor

4132 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Find the median, upper and lower quartiles of these numbers: 160, 390, 169, 175, 125, 420, 171, 250, 210, 258, 186, 243

Can you explain the quadratic formula?

What about simultaneous equations?

Factorise fully y=x^2+x-12 and hence find the roots of the curve