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

22486 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Adam buys 4kg of sweets and pays £10 for them. Adam puts all of the sweers into bags with 250g in each bag. He sells the bags for 70p each. All the bags of sweets are sold, what is the percentage profit?


x + y = 11, and x^2 + y^2 = 61, Work out values of y in the form of x


Solve the simultaneous equations 5x + 2y = 4 and x - y - 5 =0


Work out 2 3/4 x 1 1/2. Give your answer in terms of a mixed fraction in simplest form.


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