find the root or roots of the following equation: 2x^2 + 18x + 36

finding the roots, means to find the coordinates at which the curve intersects the X axis. At first look you may notice that each function in the equation is divisible by 2, you can do this to make solving the equation necessary2x2+18x+36=0 (divide by 2)x2+9x+18=0now you can factorise the equation. Remember: the 2 x values at the roots must multiply give you the constant and add to give the x value in the above equation. (x+3)(x+6)=0

JH
Answered by Jason H. Maths tutor

2632 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

how do ratios work


Express 56 as the product of its prime factors


Solve 7(x-5)=25-3x


Expand (x+3)(2x+9)


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