9514 1404 393
Answer:
-64
Step-by-step explanation:
Use your calculator to evaluate the expression. (see attached)
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According to the order of operations, the value is found to be ...
18(5^3 -2^7) -10
= 18(125 -128) -10
= 18(-3) -10
= -54 -10
= -64
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You may be familiar with some of the small powers of small integers:
5^2 = 25, so 5^3 = 25×5 = 125
2^3 = 8, so 2^7 = (2^3)(2^3)(2) = 8×8×2 = 64×2 = 128
