5x^3+30x^2+45x=0 it say to find all solutions to the equation.? - where to find 30x lscope in fresno
Find all Soution in the equation, but how this business?
Tuesday, January 26, 2010
Where To Find 30x Lscope In Fresno 5x^3+30x^2+45x=0 It Say To Find All Solutions To The Equation.?
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5 comments:
Try to factor in the equation --
5x ^ 3 30 x 45 x ^ 2 = 0
5x (x ^ 2 +6 x +9) = 0
5x (x 3) (x 3) = 0
The solutions are x = 0, -3
Hope this helps
Start a factor of 5x first ever
5x (x ^ 2 + 6x + 9)
As ax ^ 2 + 6x + 9 separate x ^ 2 + 6x + 9 = (x +3) ^ 2
5x put on a final solution found:
* 5x (x + 3) * (x + 3 )............. * Where the symbol of multiplication is
The first common factor 5x:
5x (x ² + 6x + 9) = 0
Now factor in the bracket (Hint: perfect square):
5x (x + 3) (x + 3) = 0
For products with zero or 5x = 0 or x + 3 = 0
5x = 0
x = 0 / 5
x = 0
or
x + 3 = 0
x = -3
Answer:
x = 0 x = -3
5x (x ^ 2 +6 x 9) = 0
5x (x 3) ^ 2 = 0
x = (0, -3)
-3 Allows a double root is
5x (x ^ 2 +6 x 9) = 0
5x (x 3) ^ 2 = 0
x = (0, -3)
-3 Allows a double root is
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