Top answers

Maths
GCSE

How do you expand (2x-1)(3x+4) using the FOIL method?

First, we must understand what the FOIL method is.

FOIL is an ancronym that we use to help us remember the steps when expanding brackets.

F - first 

O - outer

I - inner 

Answered by James L. Maths tutor
5646 Views

Factorise and solve the quadratic equation x^2 + 6x + 8 = 0

Theory

Problems like this need to be broken down into steps: i) Factorise, ii) solve and iii) check. The aim of this question is to find values of ...

Answered by Tutor87306 D. Maths tutor
7825 Views

How can I solve equations like 2x + 3 = 8x + 21?

Questions like this ask you to solve an equation; this means to find a value of x that when put into the equation allows each side of the equation to be equal.

There are th...

Answered by Tutor87017 D. Maths tutor
4445 Views

We have the following fractions: 6/16, 9/24, 12/32 and 15/35. Which fraction is not equivalent to 3/8?

Numerator and denominator of a fraction 6/16 can be divided by 2 to get 3/8.

Numerator and denominator of a fraction 9/24 can be divided by 3 to get 3/8.

Numerator and ...

Answered by Karolina P. Maths tutor
7711 Views

Suppose we have a circle whose radius is 5cm. If a sector of this circle has an area of 15 cm^2, what is the size its angle (in degrees)?

Firstly, you would need to figure out what formula you can use to solve this problem. You know the radius and area of the sector, and you need to find the angle. So, the correct equation to use would be t...

Answered by Roxani S. Maths tutor
2690 Views

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