The cost of a meal is $ 66. The sale tax rate is 8.5%. How much would the sale tax be?

$5.61

Step-by-step explanation: 8.5% of $66

Step-by-step

This problem is asking us to multiply f(x) and g(x).

{f(x)}{g(x)} = (2x^2 + x - 3)(x - 1)

Use the Distributive Property of Multiplication to multiply the functions.

(2x^2)(x) + (2x^2)(-1) + (x)(x) + (x)(-1) + (-3)(x) + (-3)(-1)

Simplify

(2x^3) + (-2x^2) + (x^2) + (-x) + (-3x) + (3)

Combine like terms

2x^3 + (-x^2) + (-4x) + 3

Answer

(a) 2x^3 - x^2 - 4x + 3