Question

1. Simplify the expression. Show your work .and steps
22 + (3^2 – 4^2)

Answer 1

PEMDAS...parentheses, then exponents, then multiplication/division, finally addition/subtraction...

22+(3^2-4^2) inside the parentheses are exponents, so they are calculated first.

22+(9-16) now you complete the operations inside the parentheses

22+(-7) finally you do your addition/subtraction

22-7

15