anonymous
  • anonymous
Find −3a2 − b3 + 3c2 − 2b3 if a = 2, b = −1, and c = 3.
Mathematics
schrodinger
  • schrodinger
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

anonymous
  • anonymous
-3(2)^2 +1^3 + 3(3)^2 – 2(-1)^3
Vocaloid
  • Vocaloid
^ ok, you've plugged in the numbers correctly, all you have to do is calculate what that expression is equal to...
anonymous
  • anonymous
I got 14 but I dont know if its correct

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

Vocaloid
  • Vocaloid
well, let's take it step by step: -3(2)^2 = ?
anonymous
  • anonymous
-6^2 or -3(4)?
Vocaloid
  • Vocaloid
it's -3(4) remember, the exponent only applies to the number next to it
anonymous
  • anonymous
Okay -3(4)
Vocaloid
  • Vocaloid
1^3 = ?
anonymous
  • anonymous
1
Vocaloid
  • Vocaloid
good. 3(3)^2 = ? (again, remember that the exponent only applies to the number next to it)
anonymous
  • anonymous
3(9)
Vocaloid
  • Vocaloid
good, – 2(-1)^3 = ?
anonymous
  • anonymous
Above, why would the 1 be positive if it was negative in the equation?
anonymous
  • anonymous
-2(-1)
Vocaloid
  • Vocaloid
if b = -1 then -b^3 = -(-1)(-1)(-1) = 1
anonymous
  • anonymous
Ohhhhhh. Okay I get it. Gotcha. Okay continue (:
Vocaloid
  • Vocaloid
and yes, – 2(-1)^3 = -1 so we put everything together: -3(2)^2 +1^3 + 3(3)^2 – 2(-1)^3 = -3(4) + 1 + 3(9) -2(-1) can you take over from here?
Vocaloid
  • Vocaloid
g2g but the final answer should be 18
anonymous
  • anonymous
Got it. Thank you so much

Looking for something else?

Not the answer you are looking for? Search for more explanations.