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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

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...

To factorise you need to look at common factors. And it needs to be put into the expression (x+/- y)(x+/- v)For X²-X-12, you need two numbers that times to make -12 and add to make -1-1X12, -12...