Answers>Maths>A Level>Article

Express 2x^2 +8x +7 in the form A(x+B)^2 + C, where A, B and C are constants

2x2+8x+7=2(x2+4)+7=2((x+2)2-4)+7=2(x+2)2-8+7=2(x+2)2-1A=2, B=2, C=-1

MC
Answered by Matilda C. • Maths tutor

8064 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Find the antiderivative of the function f(x)=(6^x)+1

Answered by LUKE V.

By expressing cos(2x) in terms of cos(x) find the exact value of the integral of cos(2x)/cos^2(x) between the bounds pi/4 and pi/3.

Answered by Hugo F.

Find the coordinates of the stationary point of the graph y = 3x^2 - 12x

Answered by Jack M.

Find the 12th term and the sum of the first 9 terms on the following Arithmetic Progression: a = 2 and d = 3

Answered by Elijah R.

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

Company Information

CareersBlogSubject answersBecome a tutorSchoolsSafeguarding policyFAQsUsing the Online Lesson SpaceTestimonials & pressSitemap

Popular Requests

Maths tutorChemistry tutorPhysics tutorBiology tutorEnglish tutorGCSE tutorsA level tutorsIB tutorsPhysics & Maths tutorsChemistry & Maths tutorsGCSE Maths tutors

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
CEOP logo
CLICK CEOP

Internet Safety

Sagepay logo

Payment Security

Cyber Essentials logo

Cyber

Essentials

Cookie Preferences