Why doesn't (a+b)^2 = a^2+b^2

(a+b)2 actually means (a+b)x(a+b) and so you have to solve this the long way unfortunately. You can use the grid method to do this [I would write this out on the whiteboard function at this point] which gives you the answer of a2+b2+2ab.

MT
Answered by Mai T. Maths tutor

2518 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve 3x^2 = 8x - 2 giving your answers to 2 d.p.


At a school number of boys : number of girls = 9 : 7 There are 116 more boys than girls. Work out the total number of students at the school.


How do you factorize a quadratic when a ≠ 1 when ax²+bx+c=0


Share £200 in the ratio 2:3


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