(4) Show that in general, the sum of the roots of a quadratic equation ax² + bx + c = 0 b is whereas the product of the roots of a quadratic equation is a a

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter14: Sequences And Mathematical Induction
Section14.3: Another Look At Problem Solving
Problem 29PS
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(4) Show that in general, the sum of the roots of a quadratic equation ax? + bx + c = 0
b
is -- whereas the product of the roots of a quadratic equation is
a
(5) The present value that will give a future value S in 4 years with interest compounded annually
varies inversely as the fourth power of 1 + r, where r is the annual interest rate.
If the present value of $1525.79 gives a future value of $2000, what would be the present value
of $10,000 in the future?
Transcribed Image Text:(4) Show that in general, the sum of the roots of a quadratic equation ax? + bx + c = 0 b is -- whereas the product of the roots of a quadratic equation is a (5) The present value that will give a future value S in 4 years with interest compounded annually varies inversely as the fourth power of 1 + r, where r is the annual interest rate. If the present value of $1525.79 gives a future value of $2000, what would be the present value of $10,000 in the future?
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