SOLUTION: Solve. 5x^2 = 15 Also, find the x-intercepts of f(x) = 5x^2 - 15 Thank you in advance for any help you can give me.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Solve. 5x^2 = 15 Also, find the x-intercepts of f(x) = 5x^2 - 15 Thank you in advance for any help you can give me.      Log On


   

Question 133101: Solve.

5x^2 = 15 Also, find the x-intercepts of f(x) = 5x^2 - 15
Thank you in advance for any help you can give me.
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
5X^2=15
5X^2-15=0
5(X^2-3)=0
X^2-3=0
X^2=3
X=SQRT3
X=+/-1.732 ANSWER
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F(X)=5X^2-15
+graph%28+300%2C+200%2C+-6%2C+5%2C+-20%2C+10%2C+5x%5E2+-15%29+ (graph 300x200 pixels, x from -6 to 5, y from -20 to 10, 5x^2 -15).
X INTERCEPTS ARE: (1.732,0)(-1.732,0)