Search over 10,000 free study notes

Rearrange (1): y=2x+4

Subsitute this into (2): 4x²+(2x+4)²+20x=0

Simplify and collect like terms: 8x²+36x+16=0

Factorise: (2x+1)(x+4)=0

Therefo...

This question is taken from a 2016 GCSE past paper. In language exams there are lots of reading comprehension questions. For this question in an exam, there would be lots of different people's viewpoints ...

Both Magnesium Oxide and Sodium Chloride exist as a giant ionic lattices where each oppositely charged ion is held in place by a strong electrostatic attractions. These ionic bonds are strong and require ...

In the context of this period, to 'improve' their lives, a successful government would need to embark on: political reform to enfranchise the working class and social reform to create an egalitarian socie...

Sustainable transport can be defined as transport which meets the need of the present without compromising the needs of future generations. It must be both environmentally and financially sustainable, uti...