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how do you factorise a quadratic where there is a number in front of the x squared?

All quadratic equations have the form ax 2 + bx + c. If you take the equation: 2x 2 + 4x + 2 In this example a=2, b=3 and c=2 In order to factorise what we call a number (coefficient) higher than 1 in front ...
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Answered by Sagar M. • Maths tutor
33604 Views

How do I simplify 10/(3 root5)?

To simplify this fraction, you must rationalise the denominator (lower half of the fraction) to get rid of the surd. A surd is an irrational number that cannot be simplified further to remove the square root...
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Answered by Laura S. • Maths tutor
14186 Views

How do I solve 3x-4=x/2

So we are solving to find x. Our first step is to make sure everything is written in whole numbers (we need to get rid of that fraction). To do this we multiply both sides of the equation by 2, we have to mu...
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Answered by Laura M. • Maths tutor
11086 Views

If x>2y and 2x<5y, what is the range of x when y=6?

x &gt; (2x6) :. x &gt; 12 2x &lt; (5x6) :. 2x &lt; 30 :. x &lt; 15 12 &lt; x &lt; 15
MB
Answered by Michael B. • Maths tutor
3626 Views

Sean wants to go on holiday. He is going to get a loan of £ 720 to help pay for the holiday. Sean will have to pay back the £ 720 plus interest of 15 %. He will pay this back in 12 equal monthly installments. How much money will Sean pay back each month?

Sean is lent £720. He has to pay back all of this, plus the extra 15% interest. So first you have to find 15% of £720: 10% is £72, 5% is £36, therefore 15% is £72 + £36 = £108. The total amount he has to pay...
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Answered by Emma L. • Maths tutor
12801 Views