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Find the area under the curve y = (4x^3) + (9x^2) - 2x + 7 between x=0 and x=2

To be able to solve this, the equation needs to be integrated. To do this, increase the power by 1 and divide by the new power. The equation below is equal to that given in the question y = 4(x^3) + 9(x^2) -...
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Answered by Nicholas H. • Maths tutor
5090 Views

Solve the simultaneous equation. 2x + y = 7 and 3x - y = 8

There are few ways to carry out the following question. Elimination and substitution are the two main methods. To carry out elimination you will need to focus on the similar terms, in the question this would...
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Answered by Charlotte D. • Maths tutor
10186 Views

0. There are 25 CDs in a box. A shop orders 14 boxes. How many CDs did the shop order? Answer: _________

This is a multiplication question. Say there were 2 CDs in a box and a shop ordered 10 boxes. How many CDs did the shop order? 20. In the same way this question can be approached. 25x14.
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Answered by Ramiz K. • Maths tutor
3929 Views

Solve the simultaneous equations: 3x + 2y = 9 and x + 7y = 22.

A simultaneous equations can be solved in multiple ways. You are probably familiar with substitution and elimination. Today, we will focus on substitution. As you can see, both equations represent a relation...
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Answered by Sara D. • Maths tutor
6072 Views

How would I answer this question? Use factor theorem to show (x-2) is a factor of f(x) = 2x^3 -7x^2 +4x +4.

The first step is to find out the value of x for which your bracket/value you think is a factor equals 0. So, x – 2 = 0, therefore x = 2. Now plug in this value into your original equation and if the result ...
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Answered by Maria S. • Maths tutor
5631 Views