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

4727 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

50 people ate a snack , some had apples some had biscuits the rest had banana. 21 people were male the rest female. 6 out of 8 people who had apples were female. 18 people had biscuits. 9 females had bananas. How many males had biscuits?


Solve the quadratic equation x^2+5x+6=0


Find the inverse of: f(x) = (2x + 3)/(x - 4)


Complete the square of X^2 + 4X - 12


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