Question

3 mũ 6 : 3 mũ 2 + 2 mũ 3 . 2 mũ 2

( 39 . 42 - 37 . 42 ) : 42

Answer 1

a) \(3^6:3^2+2^3.2^2=3^4+2^5=81+32=113\)

b)\(\left(39.42-37.42\right):42=\left(39-37\right)42:42=2.\left(42:42\right)=2.1=2\)

Answer 2

3^6:3^2+2^3.2^2.(39.42-37.42):42

=3^4+2^5.42.(39-37):42

=81-32.2

=81-6=17

Answer 3

(39x42-37x42):42

=(39-37)x42:42

=2x(42/42)

=2x1

=2