Top answers

Maths
GCSE

Find x in the following equation: 4x + 8 -2x = 10

First combine the x-parts of the equation: 4x - 2x = 2x Next move the "number parts" so they are all on the same side: 2x + 8 = 10 ---> 2x = 2 Then divide through by 2 to move the 2 from the...

EM
Answered by Elizabeth M. Maths tutor
3913 Views

Why is completing the square useful and how do you do it?

Completing the square is nice and easy. If you have an equasion of the form x2+ax+b=0 then simply rewrite the equasion in the form (x+a/2)2-(a/2)2 +b=0. This may sound com...

EB
Answered by Edward B. Maths tutor
3211 Views

Expand and simplify 3(x+4) - 2(4x+1)

3(x+4) - 2(4x+1)= 3x + 12 - 8x + 2= 3x - 8x + 12 - 2= -5x + 10

PP
Answered by Pioli P. Maths tutor
5148 Views

How do you solve a quadratic equation e.g. x^2 - 5x - 14 = 0?

Quadratic equations take the form ax^2 + bx + c = 0. In the case above, a = 0, b = -5, c = -14. In order to solve it, we can factorise the equation into the form (x+c)(x+d) = 0. The answers are then x = -...

MP
Answered by Manal P. Maths tutor
3048 Views

y = (x + 2)(x + 5)

steps as follows:x times x = x22 times 5 = 102 times x = 2xx times 5 = 5xthen add these together:y = x2 + 7x +10x = -2, -5; y = 0, 10

GL
Answered by Georgie L. Maths tutor
2944 Views

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