Solve the equation 3x^(2)-7x+3 giving your answer to three significant figures.

Since there is no further factorisation possible we use the quadratic formula x=[-b±√(b2-4ac)]/2a. From the equation in question we have  a=3, b=-7, c=3. Substituting into the quadratic formula x=[7±√((-7)2-4(33)]/23 =[7±√13]/6. Thus x=1.77 or x=0.566.

BH
Answered by Benjamin H. Maths tutor

4648 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Do two random lines, y=ax + b and y=cx + d, intersect? How do we work this out and if they do, where do they intersect?


Find the values of x and y when 3x+4y=18 and 4x+2y=14


3x+5y=7 and 9x+11y=13. Solve to find the values of x and y that satisfy both equations.


You are given a right triangle ABC with angle ABC = 30 degrees and AB equal 7. Then AC and BC are then extended to points D and E so that EDC is a right triangle. Find length DE if BD = 15


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