7. If f(x)=ax²+bx+c and f(-3)=0, then which of the following a factor of f(x)=ax²+bx+c ? A. 3x+5 8. B. 3x-5 C. 5x+3 D. 5x-3 If a and b are positive numbers, which of the following is/are true? I. log (a+b)=loga+logb II. log — = log a = log b III. loga _ a log b b - A. I and II only B. II only C. II and III only D. I, II and III

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.6: Exponential And Logarithmic Equations
Problem 25E
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7.
If f(x)=ax²+bx+c and f(-3)=0, then which of the following a factor of
f(x)=ax²+bx+c ?
A.
3x+5
8.
B. 3x-5
C.
5x+3
D.
5x-3
If a and b are positive numbers, which of the following is/are true?
I.
log (a+b)=loga+logb
II.
log — = log a = log b
III.
loga _ a
log b b
-
A. I and II only
B. II only
C. II and III only
D. I, II and III
Transcribed Image Text:7. If f(x)=ax²+bx+c and f(-3)=0, then which of the following a factor of f(x)=ax²+bx+c ? A. 3x+5 8. B. 3x-5 C. 5x+3 D. 5x-3 If a and b are positive numbers, which of the following is/are true? I. log (a+b)=loga+logb II. log — = log a = log b III. loga _ a log b b - A. I and II only B. II only C. II and III only D. I, II and III
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