Question

What is the value of 10x^3 y^2 when x=-2 and y=-3

Answer 1

Hope this helps you :)

Answer 2

-720

Explanation:

We are given the expression:

`10x^3y^2`

and asked to evaluate when x= -2 and y= -3.

Therefore, we must substitute -2 for x and -3 for y.

`10(-2)^3*(-3)^2`

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

Evaluate the first exponent.

⇒ (-2)³ = -2 * -2 * -2= 4*-2= -8

`10(-8)*(-3)^2`

Evaluate the second exponent.

⇒ (-3)²= -3 * -3= 9

`10(-8)*9`

Multiply 10 and -8.

`-80*9`

Multiply -80 and 9.

`-720`

The value of 10x³y² at x= -2 and y= -3 is -720