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Solve for x: 2x^2 + 7x + 6 = 0

Solve for x: 2x2 + 7x + 6 = 0

The first thing to do is look at the left hand side and factorise it. To do this we use the reverse of FOIL. Then when the expres...

AC
Answered by Asher C. Maths tutor
19363 Views

Find x and y of these two equations: 2x - 3y = 13 and 3x + y = 3

In order to find the unknown variables x and y we need to simplify these equations in the way that will make it possible for us to get rid of either x or y variable, and make it easier...

ZB
Answered by Zuzana B. Maths tutor
21564 Views

Why does ln(x) differentiate to 1/x ?

At first glance, this may seem quite complicated. However, it is simple once you make use of exponents. 
Let y=ln(x)
This can be written as: e= e

CE
Answered by Charlie E. Maths tutor
14634 Views

Differentiate ln(x)/x


Let R denote the region bounded by the curve y=x^3 and the lines x=0 and x=4. Find the volume generated when R is rotated 360 degrees about the x axis.

The area of a circle is given by (pi)r2 and the area generated by R can be considered as an infinite number of circular areas.

Thus, we can write the area gene...

SB
Answered by Stephen B. Maths tutor
5462 Views

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