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Solve $\color{orange}{a}x^2 - \color{blue}{b}x + \color{green}{c} = 0$

Generally, quadratic equation of the form $\color{orange}{a}x^2 - \color{blue}{b}x + \color{green}{c} = 0$ where $\color{orange}{a} \neq 0$ can be solve by evaluating $$\color{brown}{\Delta} = \color{blue}{b...
MC
Answered by Maciej C. Maths tutor
4152 Views

How have you demonstrated that medicine is the career you would like to pursue?

I have explored the work of health professionals in detail during the last two years. Through a series of a work experience placements and volunteering I have been able to observe the important work that doc...
RS
2067 Views

How does the UK Parliament hold government to account?

In bullet points: The bill system allows for UK legislation brought forward by the government to be debated in both the House of Lords and Commons where amendments can be put forward and all legislation is d...
TH
27872 Views

Simplify 2a+6b-a+2b+3a

Look for the corresponding letters to each number. So, as an example those with a. remember that the + or - before it tells us whether it is to be added or subtracted There are 2a-a+3a so that = 4a With b th...
TH
Answered by Tom H. Maths tutor
5137 Views

Solve 8(4^x ) – 9(2^x ) + 1 = 0

At first this equation seems tricky, but we can perform a clever substitution to simplify it. We notice that if let y = 2^x, then we can rewrite this as: 8(y^2) - 9y + 1 = 0 This now becomes a simple quadrat...
DS
Answered by Daljit S. Maths tutor
9779 Views