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Can you explain the formula method for solving quadratic equations?

We can use the formula method (for solving quadratic equations) to find 'roots' or values of x that satisfy or 'work out' for a given quadratic equation of an unknown variable (say x.) The formula is:x=-b(+o...
DM
Answered by Daniel M. • Maths tutor
11629 Views

How to stop making mood mistake after "que" in frenchstop making mood mistake after "que" in french

You never know what mood o use after "que" in french? Well, feel better because even some french people don't.The rules are simple you just need to learn them. Verbs that need subjunctive are those...
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Answered by Airelle A. • French tutor
3261 Views

Differentiate with respect to X: x^2 + 2y^2+ 2xy = 2

Assuming the correct tools of differentiation have been taught, we can tackle each term seperately and then rearrange to have dy/dx as the subject. Taking a look at the first term, x^2, differentiating this ...
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Answered by Callum O. • Maths tutor
44806 Views

What is the equation for complete combustion and what does it require?

The equation for complete combustion is: hyrdocarbon + oxygen -> water + carbon dioxide A plentiful supply of oxygen is required in order to ensure complete combustion.
CL
11859 Views

Answer the following simultaneous equation:

Equation 1) x 2 +y 2 =5 (Equation 2) y=3x+1 The value of x is the same in both equations, as is the value of y. Therefore we can use one to work out the other. for example taking equation 1 and definining x ...
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Answered by Jenn S. • Maths tutor
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