15 + 2 . 3^2 - 5^2
= 15 + 2 . 9 - 25
= 15 + 18 - 25
=33 - 25 = 8
3^5 : 3^2 - 2 . 2^3
= 3^3 - 2^4
= 27 - 16
= 11
a/ 15 + 2 . 32 - 52
= 15 + 2 . 9 - 25
= 15 + 18 - 25
= 33 - 25
= 8
b/ 35 : 32 - 3 . 23
= 35-2 - 3 . 8
= 33 - 24
= 27 - 24
= 3
a/\(15+2.3^2-5^2\)=\(15+2.9-25\)=\(15+18-25\)=\(8\)
b/\(3^5:3^2-3.2^3\)=\(3^3-3.8\)=\(27-24=3\)
a ) 15 + 2.32 - 52
= 15 - ( 5 - 2.3 )2
= 15 - -12
= 16
b ) 35 : 32 - 3.25
= 3( 5 - 2 ) - 3.25
= 33 - 3.25
= -308.54432
a) 15 + 2.32 - 52
=15 + 2.9 -25
= 15 +18 -25
=8
b) 35 : 32 -3.23
= 33 - 3.8
= 27 - 24
= 3