Do the inverse operation:
P(x)+(3x-7)=0
P(x)=-3x+7
Answer:
f(x) = x³+2x²-16x-32
Step-by-step explanation:
f(x) = 0 when x = -4, -2, 4
So these are the roots
Factors are (x+4)(x+2)(x-4)
f(x) = [(x+4)(x-4)](x+2)
f(x) = (x²-16)(x+2)
f(x) = x³+2x²-16x-32
The simple interest rate is 4.7%
<h3>How to determine the
simple interest rate?</h3>
The given parameters are:
Principal = $2100
Interest = $1,559.46
Time = 15.8 years
The simple interest is calculated as:
I = PRT
Make R the subject
R = I/(PT)
So, we have:
R = 1559.46/(2100 * 15.8)
Evaluate
R = 0.047
Express as percentage
R = 4.7%
Hence, the simple interest rate is 4.7%
Read more about simple interest at:
brainly.com/question/20690803
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