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Find the roots of 2x^2-2x=3, leaving your answer in it's simplest exact form.

First we need to rearrange our equation so it is in the correct form of ax2+bx+c=0.So we'd move the 3 over to the left hand side to give us 2x2-2x-3=0.We need to use the quadratic formula. Usin...

JA
Answered by Jake A. Maths tutor
3627 Views

Solve the inequality x^2 + 4x ≥ 77

  1. First step is to rearrange to make the quadratic easier to work with: in a familiar form. x2 + 4x ≥ 77, -77 from both sides x2 + 4x - 77 ≥ 0 Now the quadratic can be solved, ...
AD
Answered by Alex D. Maths tutor
4635 Views

Show that the square of any odd number is an odd number

We can talk about any integer (or whole number) with the variable n. n could be any integer, 2, 3 or 100 or 5 billion and 1!If n is any integer, then what numbers could be written as 2n? These are the eve...

AT
Answered by Alice T. Maths tutor
4045 Views

Solve simultaneously, 2x-3y=16 and x+2y=-6

In order to solve this we need to make two of the terms the same and use an elimination method so we are left with only one unknown rather than two. We will multiply x + 2y = -6 by 2 in order to get 2x + ...

GG
Answered by Gemma G. Maths tutor
5222 Views

What factors influence the shift of a demand curve?

Well, the demand curve can either shift left or rightA shift of the curve would be infleunced by a non price factor which would lead to a increase or decrease in demand.Non price factors include :(Change ...

TD
1567 Views

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