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expand and simplify (x+4)(x-2)^2

(x+4)(x-2)^2(x+4)(x-2)(x-2)(x+4)(x^2-2x-2x+4)(x+4)(x^2-4x+4)x(x^2-4x+4)+4(x^2-4x+4)(x^3-4x^2+4x)+(4x^2-16x+16)x^3-12x+16
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Answered by Bethany W. • Maths tutor
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To make 12 cakes you need 100g of butter, 6 eggs, and 40g of sugar. How many cakes can you make with 450g of butter, 15 eggs, and 110g of sugar?

To work this out you can either work out the amount of an ingredient needed for one cake then divide the amount you have by this or you can work out how many times the amount needed for 12 cakes goes into th...
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Answered by Celeste S. • Maths tutor
4596 Views

How do you integrate the equation x^2 + 4x + 3 dx? (

Integrating the equations: x 2 + 4x + 3 dx. To integrate, the method is to look each parts of the equation, e.g. the x 2 firstly. We would add 1 to the power to get x 3 . Then we would divide this by our new...
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Answered by Saba N. • Maths tutor
8191 Views

Simplify √32+√18 to a*√2 where a is an integer

So firstly, we need to know what type of answer we are aiming for. The question tells us to put our answer in the format a √2 where a is an integer. As we know from previous work, an integer is a whole numbe...
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Answered by Alexander H. • Maths tutor
7865 Views

The population of a town is 20000 at the start of the year 2018. A population model predicts this population will grow by 2% each year. (a) Find the estimated population at the start of 2022.

The first piece of information we need to extract from the question is the area of maths we are working in. The populations at the start of each year form a sequence. The first term of the sequence is 20,000...
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Answered by Fergus G. • Maths tutor
4900 Views