\(\left(2.5^2-3.2^3\right).3-100=2.\left(5^2-3.2^2\right).3-100=6.\left(25-3.4\right)-100=6.\left(25-12\right)-100=6.13-100=78-100=-22\)
`=(2.25-3 .8).3-100`
`=(50 - 24).3-100`
`=26.3-100`
`=78-100`
`=-22`
( 2 . 52 - 3 . 23 ) . 3 - 100
= ( 2. 25 -3. 8).3 -100
= ( 50 -24).3 -100
= 26.3 -100
= 78 -100
= -22
(2.52 - 3.23).3 - 100
= (2.25 − 3.8).3 − 100
= (50 − 24).3 − 100
= 26.3 − 100
= 78 − 100
= − 22
\(\left(2.5^2-3.2^3\right).3-100\\ =\left(2.25-3.8\right).3-100\\ =\left(50-24\right).3-100\\ =26.3-100\\ =78-100\\ =-22\)