Question

Evaluate the expression 12r + (s-t)^2 for r = 5, s = -3, and t = 7.

Answer 1

160

Explanation:

12r + (s-t)^2

Let r = 5, s = -3, and t = 7.

12 * 5 + ( -3 -7) ^2

PEMDAS says parentheses first

12 * 5 + ( -10) ^2

Then exponents

12 * 5 + 100

Multiply and divide from left to right

60 +100

Add and subtract from left to right

160