Question

Find 3x - y - 3z if x = -2, y = 1, and z = -2.

Answer 1

plug in and simplify so
3*(-2) - (1) - 3*(-2)

Answer 2

what is the * for?

Answer 3

times, multiply

Answer 4

is it -1?

Answer 5

yep :)

Answer 6

yes i got it. can uu help me with antha 1?

Answer 7

sure :D

Answer 8

Find 3x2 - y3 - y3 - z if x = 3, y = -2, and z = -5

Answer 9

\[3x ^{2} - y ^{3} - y ^{3} - z = 3(3)^{2} - (-2)^{3} - (-2)^{3} - (-5)\] which would then be 3*3*3 - (-2)*(-2)*(-2) - (-2)*(-2)*(-2) + 5
27 - (-8) - ( -8 ) + 5
then simplify

Answer 10

so i simplify 27 - (-8) - ( -8 ) + 5?

Answer 11

yup :)

Answer 12

48?

Answer 13

yep :)