Search over 10,000 free study notes

'Simplest surd form' is a clue that quadratic factorising will not work for this question, so we must instead use the quadratic formula. It is always a good idea to quote this as marks are often available...

(ASSISTED WITH DIAGRAMS)

The electrons of a molecule are constantly moving around it in charge clouds, meaning that at any one point in time, the molecule's electrons could be more likely on one si...

Simultaneous equation questions look very intimidating because not only are there 2 equations to solve but there is 2 variables in each! To start with, we're going to make the equations look less confusin...

(x+4)(x+1)=0

x=-1   x=-4

Binary form and rounded binary form are mostly the same in that they both have two related themes, one in each section, A and B, modulate to the dominant at the end of the A section, and back to the tonic...