SOLUTION: I dont get how to solve equations by graphing.
Could you please show step by step how to do this?
-x^3 -3x-2=0
x^4+2x^2-1=0
y=-x^4+4x^3+3=0
-x^3+3x+4=0
x^4+
Algebra.Com
Question 390548: I dont get how to solve equations by graphing.
Could you please show step by step how to do this?
-x^3 -3x-2=0
x^4+2x^2-1=0
y=-x^4+4x^3+3=0
-x^3+3x+4=0
x^4+2x-3=0
-x^3 +2x^2 +1=0
Any help you can give wuld be greatly appreciated
Thank you
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I dont get how to solve equations by graphing.
Could you please show step by step how to do this?
---
You would have to plot enough points to see where
the curve crosses the x-axis.
----
-x^3 -3x-2=0
If x = 0, y = -2 giving (0,-2)
If x = -1, y = 1+3-2 = 2 giving (-1,2)
Note: Since the y-value changed from negative
to positive, there must be a root between
x = -1 and x = 0
Try x = -1/2:
If x = -1/2, y = -(-1/8)-(-1/2)-2 = (1/8)+(4/8)-2 = -1 3/8
giving you (-1/2,-11/8)
Keeping up this process you can get closer and closer to the solution
which is -0.596072...
=========================================
Cheers,
Stan H.
========
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