Sunday

September 21, 2014

September 21, 2014

Posted by **cassie** on Monday, January 28, 2013 at 3:49am.

- pre-calculus -
**Steve**, Monday, January 28, 2013 at 11:52amusing the quadratic formula, the discriminant is

(a^2+2a)^2 - 8a^3

= a^2((a+2)^2 - 8a)

= a^2(a-2)^2

So, we see that

x = ((a^2+2a) ± a(a-2))/2

= a^2 or 2a

so, if the roots are a^2 and 2a, the separation is 2a-a^2. When is that a maximum? When a=1.

**Answer this Question**

**Related Questions**

pre-calculus - An open box is made from a square piece of material 36 inches on ...

Pre-Calculus - Find the maximum value, and where it occurs for eAch function. G(...

Pre-Calculus - Find the maximum value of the function for the polygonal convex ...

calculus - what is the maximum distance between f and g when f(x)=1/2x^2 and g(x...

college Algebra - so i am suppose to to find the max value attained by… g(x) = -...

College Algebra - so i am suppose to to find the max value attained by… g(x...

Pre-Calculus - A surveyor measures the distance between buildings X and Y as ...

Calculus - Which of the following is the maximum value of the function f(x)=...

Algebra 2 -Linear Programming - Find the values of x and y that maximize or ...

Pre-Calculus/Calculus - I am too embarassed to ask this Calculus (really pre-...