Question

thuc hien phep tinh

125 (28+72 ) - 25 (3^2 .4 +64 )

Answer 1

\(125.\left(28+72\right)-25.\left(3^2.4+64\right)\)

\(=125.100-25.\left(9.4+64\right)\)

\(=125.100-25.\left(36+64\right)\)

\(=125.100-25.100\)

\(=100.\left(125-25\right)\)

\(=100.100\)

\(=10000\)

Answer 2

125.(28+72)-25.(3^2.4+64)

=125.100-25.(9.4+64)

=125.100-25.(36+64)

=125.100-25.100

=100.(125-25)

=100.100

=100^2

=10 000