Top answers

Express (4x)/(x^2-9) - (2)/(x+3) as a single fraction in its simplest form.

First we must expand the demoninator to; (x+3)(x-3)Then we can multiply the left hand fraction on top and bottom by (x-3) to get a common demoninatorthis gives us; (4x)/((x+3)(x-3)) - ((2)(x-3))/((x+3)(x-3))...
EE
Answered by Eddie E. • Maths tutor
4469 Views

You have been on a two-week exchange in France and upon your return are asked to write about your experience for the school newspaper. Provide a detailed answer of 120-150 words.

Je n´aurais jamais pensé que j´allais me sentir comme une vraie française, au moins pendant les deux semaines que j´ai passées chez ma correspondante Amélie et sa famille à Nantes. Après un voyage en train a...
CC
Answered by Cristina C. • French tutor
1481 Views

Solve 4(x-5)=18

There are 2 ways to solve this equation:Method 1:Expand the brackets by multiplying everything inside the brackets by 4 to make 4x-20=18Then +20 to both sides making 4x=38Then divide by 4 to find x, therefor...
JS
Answered by Jessica S. • Maths tutor
20720 Views

Find the coordinate of the stationary point on the curve y = 2x^2 + 4x - 5.

The important point in the question is the term 'stationary point'. This is where the graph of y will 'flattern out'. If we look at this graph, we can say that the gradient is equal to 0 at this point. There...
SM
Answered by Serkan M. • Maths tutor
5366 Views

write (x+2)(x+3)(x+5) in the form ax^3+bx^2+cx+d

First take (x+2)(x+3) and expand to get x 2 +3x+2x+6, which can be simplified to equal x 2 +5x+6.Then mutiple x 2 +5x+6 by (x+5). This will give you x 3 +5x 2 +5x 2 +25x+6x+30. Simplify this to equal x 3 +10...
CH
Answered by Cora H. • Maths tutor
3930 Views