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I don't understand how to expand and simplify brackets such as (x-3)(x+5)

In my opinion, the best way to expand and simplify brackets is to use the FOIL method which stands for the following:F - firstsO - outersI - innersL - lasts.This means that you multiply the first numbers in ...
SD
Answered by Sophie D. • Maths tutor
4294 Views

3x+18=14x+2

Firstly you need to re arrange the equation in order to get x's on one side and the numbers on the other side.If you subtract 2 from both sides of the equations, you end up with 3x+16= 14x.Now if you subtrac...
JG
Answered by Jerry G. • Maths tutor
3926 Views

Simplify (a) p^2× p^5 (b) Simplify g^6 ÷ g^4

This question involves indices. To calculate the parts, we need to know some indices rules and what they are. Let's look at b^3 - b is the base number and 3 is the power number which shows how many times b h...
BS
Answered by Bessie S. • Maths tutor
4408 Views

Ben wants to book tickets to see a concert. The price of the ticket is £65. He must also pay a booking fee, which is 15% of the ticket price. Ben has £75, does he have enough money to pay for the ticket and booking fee?

The first step is finding what 15% of 65 is, i.e, calculating the booking fee. This can be done by multiplying 65 by 0.15 (0.15 being what 15% would be, if expressed in decimal form).65 x 0.15 = 9.75.This se...
BF
Answered by Benjamin F. • Maths tutor
3648 Views

Tom is making gift bags, each of which will contain two balloons. He wants to hide a sweet in one of the balloons. 20 balloons cost £1.33, 15 sweets cost £2.05. What is the minimum he needs to spend to make 35 bags?

First work out how many balloons he will need to buy . In order for each bag to have two balloons , he will need 70 balloons. Since he can buy 20 balloons at a time , this implies the minimum number he would...
PT
Answered by Peter T. • Maths tutor
3294 Views