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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 ...

Answered by Sophie D. • Maths tutor

3598 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 subt...

Answered by Jerry G. • Maths tutor

3386 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 ...

Answered by Bessie S. • Maths tutor

3570 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...

Answered by Benjamin F. • Maths tutor

3032 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 mi...

Answered by Peter T. • Maths tutor

2721 Views