Question

What is the value of the expression
9r-5s+3 to the 3rd power if r=2/3 and s= -2

Answer 1

`\huge \boxed{43}`

Explanation:

`9r - 5s + {3}^(3)`

plug the values

`= 9 * (2)/(3) - 5 * ( - 2) + {3}^(3)`

Reduce the numbers with Greatest Common Factor 3

`= 3 * 2 - 5 * ( - 2) + {3}^(3)`

Multiply the numbers

`= 6 + 10 + 27`

Calculate the sum of positive numbers

`= 43`

Hope I helped..

Best regards!

Answer 2

43

Explanation:

(9r-5s+3^3)

Let r = 2/3 and s = -2

(9 * 2/3-5* -2+3^3)

(6+ 10+27)

43