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Maths
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What are the possible value(s) of x for the following: x^2 + 3x - 54 = 0

It is a quadratic equation and when factorised will be of the form (x +/- a) (x +/- b) = 0. We need to find 2 numbers, a and b, that add together to make the 3 for the 3x term and which are multiplied ...

KG
Answered by Kate G. • Maths tutor
5245 Views

Bob lives 2km away from Alice and the school is 1km away from Bob. Alice sets off to meet Bob at 8am and she meets him at 8:15 and they carry on walking at the same pace. School starts at 8:20. Do they get to school on time? How early/late are they?

Many pupils struggle when maths questions that are given in a very wordy format. I feel these types of questions can be the most useful in testing mathematical concepts that the pupils have picked up in l...

MK
Answered by Marcin K. • Maths tutor
4158 Views

Differentiate the function y=(6x-1)^7

Problems of this style are solved using the chain rule.

To begin, define the quantity inside the brackets as u

u = 6x-1

JL
Answered by Jamie L. • Maths tutor
4692 Views

Which A-level modules did you take?

C1, C2, C3, C4

M1, M2, M3

S1, S2, S3

FP1, FP2

MW
Answered by Michael W. • Maths tutor
4891 Views

What is completing the square and how do you do it?

Completing the square is just another way of solving a quadratic equation; It is useful if you cannot factorise the equation.

When completing the square you want to end up with your equat...

AA
Answered by Alexander A. • Maths tutor
3980 Views

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