Answer:
Step-by-step explanation:
1) a) 3 - 4*5² = 3 - 4 * 25
= 3 - 100
= -97
[tex]b) 2 + \frac{10}{5}*4 = 2 + 2*4 \\\\ = 2 + 8\\\\= 10[/tex]
c) (2 -8)² - 2*(-3) = (-6)² - 2*(-3)
= 36 - 2*(-3)
= 36 + 6
= 42
