real solutions of the equation
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1)Determine if the following statements are true or false:
(1) If (3,0) is an x-intercept of f(x), then (x+3) is a factor of f(x).
(2) If f(x) is a polynomial and f(9)=0 , then -9 is a zero of f(x).
a)1 is true, 2 is false
b)They are both false
c)1 is false, 2 is true
d)They are both true
2) Given that 3x-2 is a factor of 3x^3-2x^2-15x+10, select all of the following that are real solutions of the equation 3x^3-2x^2-15x+10=0.
a)x=2
b)x=sqrt(5)
c)x=-2/3
d)x=1
e)x=-sqrt(5)
d)x=2/3
e)x=5
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This posting examines real solutions of the equation.
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(1) If (3,0) is an x-intercept of f(x), then (x+3) is a factor of f(x).
=> False, (x-3) is a factor of ...
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