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How do you multiply out two brackets?

Let us use the example of (x + 3)(x + 5) The main thing we have to remember is to multiply every term in the first bracket by every term in the second bracket. An easy way to make sure we've done this is to ...
ET
Answered by Elliot T. • Maths tutor
7375 Views

Write an algebraic expression to show the area of a square with side length x+4

x 2 + 8x + 16
AB
Answered by Anna B. • Maths tutor
5916 Views

What is the difference between nominative, accusative and dative?

The nominative, accusative and dative are cases: they affect adjective endings and the article used for a noun. The nominative is used for the subject, the noun which is carrying out the action. In the sente...
AH
Answered by Alice H. • German tutor
51766 Views

What is a titration reaction in acid-base chemistry?

A titration reaction is used to calculate the conentration of an acid or alkali. The two solutions are combined, one of known and one of unknown concentration. When combined the hydrogen ions from the acid a...
HS
Answered by Hatem S. • Chemistry tutor
3674 Views

Solve algabraically: 6a+b=16 and 5a-2b=19

To answer this we want to split up the 'a' parts and 'b' parts of the question and answer them seperately because we can't answer the question with two letters. We can change one equation to b=16-6a and now ...
AS
Answered by Anna S. • Maths tutor
5799 Views