Find where the graph of y=3x^2+7x-6 crosses the x axis

At the point where the line crosses the x axis, y=0

3x^2+7x-6=0

(3x-2)(x+3)=0

3x-2=0 or x+3=0

giving x=2/3 and x=-3

so the line crosses the x axis at (2/3,0) and (-3,0)

DB
Answered by Demi B. Maths tutor

4367 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Evaluate the following : ∫ln(x) dx


Given that x=ln(t) and y=4t^3,a) find an expression for dy/dx, b)and the value of t when d2y/dx2 =0.48. Give your answer to 2 decimal place.


Given that y = cos(3x)cosec(5x), use the product rule to find dy/dx.


Solve e^x-6e^-x=1


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences