SOLUTION: Solve for the indicated letter. s = xA^2 + mA, for A A= ___

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Question 1062509: Solve for the indicated letter.
s = xA^2 + mA, for A
A= ___

Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
s%22%22=%22%22xA%5E2+%2B+mA

Subtract s from both sides

0%22%22=%22%22xA%5E2+%2B+mA-s

xA%5E2+%2B+mA-s%22%22=%22%220

We use the quadratic formula, but so we won't
have conflicting letters, we write the quadratic
formula using different letters from normal:

The general quadratic equation is

J%2AV%5E2%2BK%2AV%2BN%22%22=%22%220 

V%22%22=%22%22%28-K+%2B-+sqrt%28+K%5E2-4%2AJ%2AN+%29%29%2F%282%2AJ%29+

where J=x, V=A, K=m, N=-s

A%22%22=%22%22%28-m+%2B-+sqrt%28m%5E2-4%2Ax%2A%28-s%29%29%29%2F%282%2Ax%29+

A%22%22=%22%22%28-m+%2B-+sqrt%28+m%5E2%2B4xs%29%29%2F%282x%29+

Edwin