Answer:
12-57= -45
-3+4 = 1
-45+1 = -44
Step-by-step explanation:
Apply exponent rule :
Factor out common factor :
Simplify brackets
-8a - 6 - 10a - 2 + 5a
Collect like terms
(-8a - 10a + 5a) + (-6 - 2)
Simplify
<u>-13a - 8</u>