In simplified exponential notation, the expression a 2 • a -3 • a =
1/a
0
1
@
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OpenStudy (anonymous):
It doesn't show some characters on here like the a^2 so do you want to take a screen shot?
OpenStudy (countrygirl1431):
hang on
OpenStudy (countrygirl1431):
\[a ^{2}*a ^{-3}*a=\]
OpenStudy (anonymous):
what's the @ in the answer choices
OpenStudy (countrygirl1431):
i didnt mean too put that
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OpenStudy (anonymous):
well theres a property ( i forgot which, its been a while XD) but it states that x^whatever1 + x^whatever2 you can add the exponents (needs to be the same base). so it will equal x^whatever3
OpenStudy (anonymous):
oops i meant x^whatever1 * x^whatever2
OpenStudy (anonymous):
so in this case a^2 * a^-3 will equal a^-1 yes?
OpenStudy (anonymous):
then you have a^-1 * a
but remember that a is actually a^1
so add -1 + 1 which equals 0
you get a^0
another property states that any number to the power of 0 always equals 1
so you answer will be...?
OpenStudy (countrygirl1431):
0
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