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Ok, so we would call this a quadratic equation because it is written in the form of ax^2+bx+c=0 (in our case, a=1, b=6, c=8).Luckily, this type of quadratic equation can be factorised, so we can solve it ...
Let the first equation be equation 1 and the second equation be equation 2.
Firstly, you must substitute equation 1 into equation 2. This is because there are currently two unknown values...
Solve for x: 2x2 + 7x + 6 = 0
The first thing to do is look at the left hand side and factorise it. To do this we use the reverse of FOIL. Then when the expres...
In order to find the unknown variables x and y we need to simplify these equations in the way that will make it possible for us to get rid of either x or y variable, and make it easier...
At first glance, this may seem quite complicated. However, it is simple once you make use of exponents. Let y=ln(x). This can be written as: ey = eCEAnswered by Charlie E. • Maths tutor14524 Views
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