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

21189 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How to solve a simple simultaneous equation


There are n sweets in a bag, 6 orange, rest yellow. H takes two, one after another, and eats them. Probability both are orange is 1/3. Show n^2 - n - 90 = 0.


What is the quadratic formula and how do I use it?


The perimeter of a right-angled triangle is 72 cm. The lengths of its sides are in the ratio 3 : 4 : 5. Work out the area of the triangle.


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