Posted by **Kelsey** on Saturday, January 26, 2013 at 5:47pm.

How would you solve the following I'm stumped..

1. 2x^2(squared)=30-4x

2. X^3(cubed)+8x=-6x^2(squared)

Thanks!

- Algebra 2 -
**MathGuru**, Saturday, January 26, 2013 at 5:56pm
First, set each equation equal to 0:

1. 2x^2 + 4x - 30 = 0

2. x^3 + 6x^2 + 8x = 0

Try to factor when possible:

1. (2x - 6)(x + 5) = 0

2. x(x^2 + 6x + 8) = 0

x(x + 2)(x + 4) = 0

Set each factor equal to 0:

1. 2x - 6 = 0

x + 5 = 0

2. x = 0

x + 2 = 0

x + 4 = 0

Can you take it from here to find the solutions for x in both problems?

I hope this explanation helps.

- Algebra 2 -
**Kelsey**, Saturday, January 26, 2013 at 5:58pm
Yes thank you!

## Answer This Question

## Related Questions

- Math - simplify the following expression and show your problem solving strategy ...
- maths - If A=1+r^a+r^2a+r^3a+.......................to infinity B=1+r^b+r^2b...
- algebra 2 - I am so stuck on this factoring thing. how do you solve: 1)15a(...
- math - factor (15a squared bc squared -9a squared b to the fourth c) by finding ...
- Inter. Algebra - what is the answer to 12x squared y cubed /2xy squared +6xy * y...
- Math - Find the shortcut. Solve these problems. Then find and explain a shortcut...
- math - How do i find the area of a triangle? For example: A squared + b squared...
- algebra 2 multiple choice HELP - find f(a), if f(t) = 2t2(squared)-t-2 A. 2(a+t)...
- algebra - Find the least common multiple of the monomials. 5a squared, and 16a ...
- algebra - x cubed + x squared over x squared - 16 times x + 4 over 3x to the ...

More Related Questions