Top answers

Simplify (2x^3+8x^2+17x+18)/(x+2)

(x+2) | (2x 3 +8x 2 +17x+18) = 2x 2 +4x+9
SP
3231 Views

Parents who attend their children’s competitive sports events are the best of fans, yet it could be argued that this puts more pressure on the children. As the captain of a sports team, you have speak at the Parent's Association about this situation

Define the format and audience: Speech/Parent's Association Precise the issue: Kids have more pressure when parents go to watch their competition Then you can start writting down ideas. I suggest starting by...
LD
Answered by Luis D. • English tutor
2146 Views

I'm struggling with quadratic equations

Quadratic equations can be tricky, to begin with, but once you get the hang of them they can become one of the best maths tools on offer to you. All quadratic equations with real roots can be solved with the...
BW
Answered by Ben W. • Maths tutor
3408 Views

Expand (1+x)^3. Express (1+i)^3 in the form a+bi. Hence, or otherwise, verify that x = 1+i satisfies the equation: x^3+2*x-4i = 0.

First, we factor out one (x+1). (1+x)^3 = (x+1)^2(x+1)= Then, we expand using the formula (a+b)^2 = a^2 + 2ab +b^2: =(x^2+2x+1)(x+1)= Then we multiply: = x^3 + 2x^2 + x + x^2 + 2x + 1 We sum the terms with t...
AI
9023 Views

Find dy/dx of the curve x^3+5xy-2y^2-57=0

3x 2 +5y+5x(dy/dx)-4y(dy/dx)=0 3x 2 +5y=(5x-4y)dy/dx dy/dx=(3x 2 +5y)/(5x-4y)
SP
Answered by Steven P. • Maths tutor
4427 Views