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There are three main ways to find the roots of a quadratic and they all have different benefits.Firstly, suppose your equation is in the form ax^2 + bx + c where a,b,c are all real numbers. Then you could...

First, remember that this exam question is the hardest and, across both papers, is only worth 8 marks from the 160 on offer. So don’t panic too much! You’ll have many other opportunities to pick up marks....

Respiration is the process of transferring energy throughout cells within an organism. Energy is required for a lot of processes to take place in organisms such as: movement - for muscle contractions to t...

1. Subtract the bottom equation from the top equation to get 3x-2x=9-5 (you don't see no y values in this equation as the y's have disappeared and cancelled eachother out as 3y-3y=0)2) So 3x-2x=9-5 equ...

The parental DNA is unwound from its double helix structure.DNA Helicase enzymes break hydrogen bonds between the bases of the parental DNA.DNA p...