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How do you factorise a quadratic with a co-efficient in front of the x^2 - e.g: 3x^2 + 14x + 8

Ok so to factorise a quadratic with a co-efficient in front of the x^2 you need to follow a couple of steps: Step 1 - multiple the co-efficient by the number at the end of the expression - e.g. 3^8 = 24 Step...
NK
Answered by Nathaniel K. • Maths tutor
3973 Views

Find the exact solutions for 4 − x^2 = |2x − 1|

x=-1 x=-1+6 0.5
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Answered by Shroya V. • Maths tutor
6204 Views

What is Pythagoras' Theory?

Pythagoras' Theory explains that the length of sides in a right angled triangle are related. This means we can use the length of two sides to find that of the third! The relationship he found is a 2 + b 2 = ...
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Answered by Alexander R. • Maths tutor
4529 Views

What is a confidence interval?

Using the normal distribution, we can estimate a range of values which we expect to contain the mean. For example, if we take a sample of 30 students height, we can estimate the mean height of students in th...
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Answered by Alexander R. • Maths tutor
4879 Views

Factorise the quadratic equation: x^2 + 5x + 6 = 0 and hence find the two solutions to the equation.

Start by writing the equation out again: x 2 + 5x + 6 = 0 I do it by thinking which two numbers add together to = 5 and which same two numbers multiply to = 6. The answer to this is 2 and 3. So the next step...
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Answered by Callum J. • Maths tutor
8371 Views