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[Method 1] The solutions need to add together to make 3 and multiply to make -28. For them to multiply and make a negative number one of the solutions must also be negative and the other positive (so ther...

5a x a = 5a² 5a x 3b =15ab 5a² + 15ab

Firstly, you have to remember the equations for finding the sine, cosine and tangent of an angle. A good way of remembering this is to draw out the SOHCAHTOA triangles.To find the sin,cos and tan of 60 an...

f(x) = g(x), 2x+5=8x-7, 12=6x, 6x=12 therefore, x=2.

I found that the best way to prepare was by looking at past exam questions and attempting them under exam conditions - timed, in silence, and without notes. It can also be useful to look over worksheets t...