SOLUTION: Please help solve the following equation:
600 = 0.9x^ - 26.5x + 290
Thanks.
Algebra.Com
Question 188334: Please help solve the following equation:
600 = 0.9x^ - 26.5x + 290
Thanks.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'm assuming that the equation should be
Start with the given equation.
Multiply EVERY term by 10 to make every number a whole number
Subtract 6000 from both sides.
Combine like terms.
Notice we have a quadratic equation in the form of where , , and
Let's use the quadratic formula to solve for x
Start with the quadratic formula
Plug in , , and
Negate to get .
Square to get .
Multiply to get
Rewrite as
Add to to get
Multiply and to get .
Simplify the square root
or Break up the expression.
So the answers are or
which approximate to or