Question

a){100:[45-45:(-9)]-32}.5-2.5²

b)(25-16-3²).2024

c)(34-42-2023).128⁰

 

Answer 1

a: \(\left\{100:\left[45-45:\left(-9\right)\right]-32\right\}\cdot5-2\cdot5^2\)

\(=\left\{100:\left[45+5\right]-32\right\}\cdot5-2\cdot25\)

\(=\left\{100:50-32\right\}\cdot5-50\)

\(=\left(-30\right)\cdot5-50\)

=-150-50

=-200

b: \(\left(25-16-3^2\right)\cdot2024\)

\(=\left(9-9\right)\cdot2024\)

\(=0\cdot2024=0\)

c: \(\left(34-42-2023\right)\cdot128^0\)
\(=34-42-2023\)

=-8-2023

=-2031