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If you are given the equation y = x2+4x+1 First you determine what is in the squareMake sure your x2 term has no coefficientFind half the coefficient of the x termThat is your brack...
since the values are too difficult to calculate from factorising, we use the quadratic formula ((-b)±(b^2-4ac)^(1/2))/(2a).putting the values in as (ax^2+bx+c=0) we find the roots in exact form are;(-11+(...
When differentiating you find the gradient of the function/line, this means how fast does the function goes up or down.
So, working out the different side lengths of the triangle is going to help find the area at the end. We split the ratio up into 3s and show them as a proportion of the whole perimeter. For example, one s...
You should already be familiar with multiplying out brackets to arrive at a quadratic equation, which will look something like the following: (x + 2)(x + 3) = x2 EMAnswered by Eleanor M. • Maths tutor2892 Views
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