The value of the expression 9x² × y⁻² at x = –3 and y = 2 will be 81/4.
What is the value of the expression?
When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.
The expression is given below.
⇒ 9x² × y⁻²
We know that a⁻ⁿ = 1/aⁿ. Then the value of the expression will be
⇒ 9x² / y²
Substitute the value of the variable x = –3 and y = 2. Then the value of the expression will be
⇒ 9(-3)² / 2²
⇒ 9 x 9 / 4
⇒ 81 / 4
The value of the expression 9x² × y⁻² at x = –3 and y = 2 will be 81/4.
More about the value of expression link is given below.
https://brainly.com/question/23671908
#SPJ2
