How is the quadratic formula used?

When you are told to solve a quadratic equation and when factorising is not possible, quadratic formula can be used to find out the solution. First you will need to get the coefficients from the quadratic equation and then plug in these values into the equation appropriately and solve!

Answered by Darem A. Maths tutor

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Calculate the area of a sector which has an acute angle of 30 degrees and a radius of 5cm.


Factorise fully y=x^2+x-12 and hence find the roots of the curve


50 people ate a snack , some had apples some had biscuits the rest had banana. 21 people were male the rest female. 6 out of 8 people who had apples were female. 18 people had biscuits. 9 females had bananas. How many males had biscuits?


Solve: 3(x - 2) = 21


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