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Complete the square and find the roots (where y=0) of: "x^2+4x-5"

completing the square: (x+2)^2-9 finding the roots: (x+2)^2=9 x+2=+/-3 at y= 0, x= -5 or 1

Answered by Liam Q. • Maths tutor

4230 Views

y=4x^3+6x+3 so find dy/dx and d^2y/dx^2

dy/dx=12x^2+6 d^2y/dx^2=24x

Answered by Swapnil P. • Maths tutor

5121 Views

How useful are these sources for our understanding of Nazi Germany from 1933 to 1939? (32 mark)

There are many aspects which contribute to our understanding of Nazi Germany within the period of 33-39. Within source A we are prevented with a satirical cartoon which grates harshly upon the regime of t...

Answered by Kate M. • History tutor

3719 Views

The process of applying to medical school

You will formally apply to medical school in October the year before you plan to attend. Before that there are a few steps to achieve.
To begin with grades are important, both at GCSE and A-level. H...

Answered by Charlie G. • Medical School Preparation tutor

1747 Views

The straight line L1 passes through the points (–1, 3) and (11, 12). Find an equation for L1 in the form ax + by + c = 0, where a, b and c are integers

When finding the equation of a straight line there are two important figures to calculate. The first being the gradient (the slope of the line) and the second being the y intercept (where the line crosses...

Answered by Ruby B. • Maths tutor

19733 Views