could you guys help me please?

i just transfered from a different school, and they are learning stuff completely different than in my school. please help.

Find -a^2 - 3b^3 + c^2 + 2b^3 - c^2 if a = 3, b = 2, and c = -3.

Question

could you guys help me please?




i just transfered from a different school, and they are learning stuff completely different than in my school. please help.

Find -a^2 - 3b^3 + c^2 + 2b^3 - c^2 if a = 3, b = 2, and c = -3.

anonymous · Answer

notice that -3b^3 + 2b^3 = -b^3 and that c^2 - c^2 = 0

so it is now


 -a^2 - b^3

simply plug in the values:

-(3)^2 - (2)^3 = -9 - 8 = -17

stormswan · Answer

oh. thank you :) its not like we learn this stuff in Russia...

anonymous · Answer

glad i could help :)