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The question asks us to factorise the quadratic 2x^2 - 4x - 6. All quadratics are of the form ax^2 + bx + c, so we have a = 2, b = -4, c = 6. I would advise approaching it using the prod...

I have experience teaching in my own country about the subject.

I achieved an A in O level Mathematics.

The quadratic equation is x=(-b+-SQRT(b^2-4ac))/2a. In this instance, a = 3, b = 2, and c = 15. Simply putting the numbers in place of the letter counterpart, gives an answer of 1.93 and -2.59 to two deci...

First, my approach is to ask student to count the squares on the area under a curve. This process is tedious, and only gives an estimation. Next, I show them the formula to do integration, and immediately...