Solve 3x^2 - 5 = 43

First, we want all the terms with X on one side, so let's +5 to both sides.3x2 = 48Let's simplify, so we get x2 on its own.48÷ 3=16x2 = 16Now, we need x 'unsquared', so we will square root it. √16=4

NM
Answered by Naomi M. Maths tutor

4254 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve the following simulatenous equation to find the values of both x and y: 5x+2y=16 3x-y=14


When using trigonometry to calculate side lengths/angles, how do you know which identity to use?


What is the probability of picking a red ball twice from a bag of 6 blue balls and 3 red balls, without replacement.


How do you complete the square for the question x^2 + 6x - 10 ?


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