Answers>Maths>GCSE>Article

Work out the points of intersection of the graphs of y= (x+2)(x-4) and y=3x+6.

3x+6=(x+2)(x-4)

3x+6 = x²-2x-8

x²-5x-14=0

(x-7)(x+2)=0

x=7 so y=27

and x=-2 so y=0

EL

Answered by Edward L. • Maths tutor

4626 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

How do you work out the tangent to a circle at a given point on the circle?

Factorise and solve x2 - 8x + 15 = 0

How do you rationalize the denominator of a fraction?

Find the centre and radius of the circle with equation: x^2 + y^2 -4x +8y = 5, and determine whether the point (7,-4) lies on the circle.

We're here to help

+44 (0) 203 773 6020

Company Information

Popular Requests

Maths tutor Chemistry tutor Physics tutor Biology tutor English tutor GCSE tutors A level tutors IB tutors Physics & Maths tutors Chemistry & Maths tutors GCSE Maths tutors

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy

CLICK CEOP

Internet Safety

Payment Security

Cyber

Essentials