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With differentiation we should always begin with the "times by the power and take one from the power" rule. For example, to differentiate ax^b --> (a x b)x^(b-1)

So...

x=-1/7 or -1/3

y=-3/7 or 1/3

Being able to find partial fractions is very useful for complex algebraic fractions that cannot be intergrated in their current form. Breaking it down into a sum of it's partial fractions gives two (or mo...

=3*5x^2

=15x^2

To integrate e^(2x), integration by substitution can be used.

2x=u, you're left with an intergrand of e^u. 

S: = integral sign

S: e^u dx. In this case we are still integrating the int...