Question

21 + 2a^4 - 4b^2 when a = -2 and b=3

Answer 1

Have you included ALL of the instructions that came with this problem?

Answer 2

yep

Answer 3

I believe the instructions ask that you "Evaluate 21 + 2a^4 - 4b^2 when a=-2 and b=3."
What does that mean to you?

Answer 4

solve

Answer 5

\[21 + 2a^4 - 4b^2,\qquad a=-2,\qquad b=3\\
~\\
=21+2(-2)^4-4(3)^2\\=\]

Answer 6

No!

Answer 7

I dont know really

Answer 8

the answer is 17

Answer 9

Can you explain how you got the answer cause I'm a little confused

Answer 10

\[21 + 2*a^4 - 4*b^2\]
\[=21 + 2*(-2)^4 - 4*(3)^2\]
\[=21 + 2*16 - 4*9\]
\[=21 + 32 - 36\]
\[= 17\]

Answer 11

Ohhh i see now

Answer 12

good!

Answer 13

Thanks

Answer 14

you are welcome :)