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

4486 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve these simultaneously to find values for a and b: 6a + b = 16 and 5a - 2b = 19


What are indices laws?


If f(x) = x^2 - x + 7, find f(3)


write (x+2)(x+3)(x+5) in the form ax^3+bx^2+cx+d


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:

© 2026 by IXL Learning