3x² = 75 Find the value of x.

First Simplify the numbers we know. Therefore we get:       x2=75/3      which is the same as     x2=25

Now find the square root of 25, which is 5 or -5. Therefore x=5 or -5

DB
Answered by Daniel B. Maths tutor

22351 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve ((3x+2)/(x-1)) +3 =4


factorise fully: 10pq +15pqr


How do I solve simultaneous equations when one is quadratic? For example 3x^2 -2y = 19, 6x-y-14=0


A ship sets off on a bearing of 072 degrees from port and travels 3.4km in a straight line. How far north of the ship's starting position is its final position? Give your answer to two decimal places.


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