Search over 10,000 free study notes

completing the square (x+5) 2 -25 -3 =0 (x+5) 2 -28 = 0 (x+5) 2 = 28 x= ±2√7 -5

Capillaries have walls only one endothelial cell thick, meaning their walls are very thin. This makes them well adapted for gas exchange, as substances only have to diffuse over a short distance. Additionall...

The easiest way to approach this is by trying to find two numbers which add up to the x coefficient (the number attached before the x) and multiply to the constant (the number on its own). For example...x 2 ...

Plan of essay answer- Success= defined by popular support, media coverage and legal change. Intro- line of argument= was very successful in gaining support and media coverage, leading to legal change (howeve...

Differentiation at A level is a method of working out the gradient of curves that aren't straight lines. If you have a function that is non-linear, which means any function that isn't in the form y= mx + c ,...