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Answered by Ertug A. • Maths tutor
4733 Views

How do you divide polynomials? How do you do it with remainder?

I'll show you on a whiteboard or a piece of paper, there's a nice grid method you can use which is a lot easier (I think) than the weird long division way I got taught in school.
TD
Answered by Tutor115090 D. • Maths tutor
3745 Views

Given that (2x-1) : (x-4) = (16x+1) : (2x-1), find the possible values of x

The question tells us the ratio between two algebraic expressions is the same as the ratio between 2 other algebraic expressions. So, we can re-write the equation as (2x-1)/(x-4) = (16x+1)/(2x-1)Re-arrange a...
PM
Answered by Pav M. • Maths tutor
19491 Views

The curve C has equation x^2 – 3xy – 4y^2 + 64 = 0; find dy/dx in terms of x and y, and thus find the coordinates of the points on C where dy/dx = 0

Start by differentiating x 2 – 3xy – 4y 2 + 64 = 0 with respect to x to obtain an equation in x, y and dy/dx: 2x – 3y – 3x.dy/dx – 8y.dy/dx = 0 [use the product rule to differentiate –3xy dy/dx(3x + 8y) = 2x...
FB
Answered by Felix B. • Maths tutor
13904 Views

Find the indefinite integral of sin(x)*e^x

As we are integrating, we must decide which method to use. As the integrand is of the form f(x)*g(x), integration by parts seems to make sense. Firstly, let L = INT(sin(x)*e^x). So we want to find L - this w...
CJ
Answered by Christopher J. • Maths tutor
4316 Views