Solve the following system of simultaneous equations: y=x^2 - 5x + 4 ; x+2y=19

Sub y=x^2 - 5x + 4 into x+2y=19x+2(x^2 -5x + 4) = 19x + 2x^2 -10x + 8 =192x^2 - 9x -11 = 0 (2x -11)(x+1) = 0x= 5.5x=-1

Answered by Sulamaan R. Maths tutor

3875 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A train travels for 240 minutes to travel a distance of 220 miles. Assuming the trains speed is constant, what is the train's speed in miles per hour?


write 2/(3+root(5)) in the form a + b*root(5), where a and b are rational numbers.


Expand and simplify 2y+3y(5y+3)


Factorise 3x^3y^2-6x^2y+9xy


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 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences