9^2 - (7 * 2^2 + 4)=

Asked by AnneS2 12 years ago 8/9/2013 3:56 AM

Last updated by anonymous 12 years ago 8/10/2013 12:16 PM

Answered by CherieS 12 years ago 8/10/2013 12:16 PM

PEMDAS=(), exponents, *, /, +, - left to right

=9^2 - (7 * 2^2 + 4)

=9^2 - (7 * 4 + 4)

=9^2 - (28 + 4)

=9^2 - (32)

=81 - (32)

=49