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

8346 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

There is a right angled triangle with sides of 5cm, 12cm and 13cm. What is the size of the smallest angle?


A shop sells only Apples, Bananas and Mangos. The ratio of Apples to Bananas is 5:11. The next shopper will choose one piece of fruit at random. The probability that they buy a Mango is 0.2. What is the probability that they buy an Apple?


The value of a car depreciates by 35% each year. At the end of 2007 it was £5460. Work out the value of the car at the end of 2006.


z = 3x + 5y, if x = 7 and z = 41, what is 2y?


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