Question

Find f(-2) for f(x)= 5x3^x

Answer 1

f(-2) = 90

Explanation:

Plugging in the value of f(x) into the equation:

f(-2) = 5(-2)3^(-2)

f(-2) = 5(-2)(-9) - evaluate the power first

f(-2) = 90 - multiply from left to right to obtain answer