Solve the equation 3x squared + 4x – 12 = 0 Give your solutions correct to 2 decimal places.

3x+4x-12=0

Step 1: formula (-b+/- square root (b2-4ac))/2a

Step 2: a=3 b=4 c=-12

Step 3: type into your calculator 

Step 4: answer 1.44, or -2.77

JY
Answered by Jin Yang Q. Maths tutor

15196 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A voucher takes 12% off a bill at a restaurant. After using the voucher, the bill for a meal is £31.68. How much was the bill before using the voucher?


Find the equation of the line that passes through the (4,6) and (9,-4)


Write an algebraic expression to show the area of a square with side length x+4


Show that the following 2 lines are parallel: l1: 3y=15x+17 l2: 7y+5=35x


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