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How do you factorise x^2 - 4?

x^2 - 4 consider that in any quadratic the two numbers which end up in the brackets at the end must add up to the middle term in x. they must also multiply to make the number at the end of the quadratic t...

Answered by Zachary M. • Maths tutor

7586 Views

What is the best way to prepare for my exam?

I find the best way to prepare for either your GCSE or A level exam is to firstly solidify your knowledge on aspects you may be tested on, such as topic knowledge and grammar, and then to practice applyin...

Answered by Logan C. • Spanish tutor

1735 Views

Show that (x+1)(x+2)(x+3) can be written in the form ax^3 +bx^2 + cx + d where a,b,c,d are positive integers.

First we shall expand two of the brackets to obtain a quadratic equation and then multiply each term by the remaining bracket. The order with which we expand the brackets does not matter. Use the FOIL met...

Answered by Scott W. • Maths tutor

7785 Views

Explain the differences between an uncodified and codified constitution.

The first difference between these two constitutional types is their source. A codified constitution is contained within one single document, whereas the source of a uncodified constitution is spread acr...

Answered by Elias W. • Government and Politics tutor

16091 Views

Tom thinks of a number. He squares it, adds 3 times the original number and then subtracts 18. The result is 0. What two numbers could Tom have been thinking of?

Formulate the problem algebraically:x²+3x-18=0This is a factorisation problem. To find the solutions, factorise:-Factors of x² are 1 and 1, so answe...

Answered by George H. • Maths tutor

3287 Views