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( 9x3) + (18 /3)

(9 x 3) + (18 / 3)
BIDMASBracketsIndicesDivideMultiplyAddSubtract
Br...

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Factorise x^2 +2x+1 to the form (x+a)(x+b)

To factorise a quadratic of this form find a pair of numbers which multiply to produce the last term and add to make the middle term.In this case 1x1 = 1 and 1+1=2 so a and b will be the same number.(x+1)...

Answered by Mohammed A. • Maths tutor

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For the function given by f(x) = x² - 5x - 6, solve for f(x)=0 by factorising.

This is a very common question for GCSE maths students and the idea of a quadratic comes up very often in other forms too.To factorise this equation we need to find two numbers whose sum is -5 and whose p...

Answered by Taylor F. • Maths tutor

2871 Views

Expand (x+1)(x-4)

Using the "FOIL" Technique should help with the expansion, telling you what order to multiply things together. F stands for "firsts", so the first step is to multiply the first things ...

Answered by Emily G. • Maths tutor

4364 Views

There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark for the boys.

Question: There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark for the boys.Answer: total mar...

Answered by Sajid K. • Maths tutor

3797 Views