Question

Evaluate the following expression using the values given:

Find 2r^2 + 3s^3 - r^2 + 4t^2 - r^2 if r = -2, s = -3, and t = 5.

-19
-37
27
19

Answer 1

ok hold on let me do the math @Mehek14

Answer 2

i'm stuck

Answer 3

what about (-2)^2 what do I do with that?

Answer 4

sorry it's takin so long

Answer 5

ok now what?

Answer 6

2*4+3*-9-4+4*5-4

Answer 7

is that right?

Answer 8

shouldn't the 5^2 be simplified already?

Answer 9

oh okay my bad

Answer 10

so now I just solve it?

Answer 11

is it -48?

Answer 12

no wait that cant be right

Answer 13

i'm confused I keep gettin wrong answers @Mehek14

Answer 14

first I got -48 then I got 23

Answer 15

is it 27?

Answer 16

@Mehek14

Answer 17

are you still there @Mehek14

Answer 18

but that not an answer up there

Answer 19

I got 27 because I added the -77 to 104

Answer 20

is that right?

Answer 21

are u stll there?

Answer 22

what did u get?