Homework Help: math

Posted by Anonymous on Sunday, October 10, 2010 at 11:48pm.

Need help in solving these
Problem #1

For f(x)=-6x3+10

find f(4) and f(-4)

Problem #2

For g(x)=20-5x2

find f(1) and f(-1)

math - PsyDAG, Monday, October 11, 2010 at 11:01am
Online "^" is used to indicate an exponent.

f(x) = -6x^3 + 10

F(4) = (-6 * 4 * 4 * 4) + 10

f(-4) = (-6 * -4 * -4 * -4) + 10

I'll let you do the calculations.

In the second problem, there is no difference, since a negative times a negative is a positive.

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