Solve X^2 - 10X + 18=0

This is solving a quadratic equation. There are two ways we can solve this. Using the quadratic equation or completing the square. 1. Quadratic equation-The equation is in the form ax^2 + bx + c. Where a=1 b=-10 c=18 Then by susbtituting these values into the quadratic equation you get 2.35 and 5.29 2. Completing the square Begin by creating (x-5)^2-25+18=0 therefore ((x-5)^2) -7=0 x-5=+/- 7^0.5 x=+/-(7^0.5) +5

BM
Answered by Ben M. Maths tutor

8213 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

In a school, there is a total of 640 children. The ratio of Girls to boys is 7:9. How many boys are there in this school?


What do the interior angles in a hexagon add up to?


3/5 of a number is 162. Work out what 4/5 of the same number is.


How do I use trigonometric ratios to work out lengths in right-angled triangles?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning