Saturday

December 20, 2014

December 20, 2014

Posted by **jillian** on Sunday, February 28, 2010 at 11:02pm.

k2 + 4k = 0

A: By factoring

B: By using the quadratic formula

D: Do the results in A, B, differ from each other? Why or Why not?

- math -
**Reiny**, Sunday, February 28, 2010 at 11:21pmYou must mean

k^2 + 4k = 0

factoring:

k(k+4) = 0

so k=0 or k= -4

formula:

x = (-4 ± √(16 - 4(1)(0))/2

= (-4 ± 4)/2

= 0 or -4

why should they differ??? Both are valid methods.

**Answer this Question**

**Related Questions**

Math - A: Solve the following equation: k2 + 4k = 0 A: By factoring B: By using ...

Math!Please Help Me! - Solve the following quadratic by either factoring or ...

Math - Solve the equation by factoring, by finding square roots, or by using the...

Math - Using the quadratic formula to solve for x in the equation x2 = 7x + 8 ...

math algebra - Part 1: Which part of the quadratic formula tells you whether the...

algebra - Solve the following equation: k2 + 4k = 0 By factoring and By using ...

Math - Use the quadratic formula to solve each of the following quadratic ...

algebra II - I'm quite clueless as to how to solve this. I know the quadratic ...

Math using Quadratic equation - The area of a square is 196cm2(squared), find ...

Chopsticks - solve the equation for x using the quadratic formula: 3x^2 + 8x + 1...