Solve 3y^2 – 60y + 220 = 0 using the quadratic formula:

when a quadratic equation isn't able to be solved using factorisation, the quadratic formula can be used, which has the general formula of ** **. The letters in the formula represent the coefficients in the quadratic equation, given in the question.
quadratic equations are written generally as: ax2 + bx + c = 0.
so, in the equation given in the question, a=3, b=-60 and c=220. You then put these values into the quadratic formula, which will give you the answer, using a calculator.

OC
Answered by Olivia C. Maths tutor

3036 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Find x and y using the equations 3x + y= 10, x + y = 4


Expand and simplify (x+6)(x-6)


Text books are stored on two shelves. Each shelf is 0.72m long. Each textbook is 30 millimetres wide. Could 50 textbooks be stored on these shelves? (3 marks)


Factorise x^2 - 7x + 12 = 0


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences