Question

If a = 2, b = 3, and c = 2, what is the value of the following expression?

(a + b)2 + 30 - c3

47
53
34
33

Answer 1

simply substitute a = 2, b = 3, and c = 2 into the given equation \((a + b)^2 + 30 - c^3\)

Answer 2

substitute, what did yu get?

Answer 3

lol i dk

Answer 4

(2+3) 2 + 30 - 2^3

Answer 5

is c cubed?

Answer 6

or another multiplication?

Answer 7

It's multiplication.
(2+3) 2 + 30 - 2 * 3

Answer 8

@ftjcgfykcffhvfnggf finish this

Answer 9

i think it's an exponent since it is AFTER the variable

Answer 10

Order of operations

Answer 11

ok so that simplifies to 8. so just finish

Answer 12

PEMDAS

Answer 13

do the parenthesis, then any exponents, then any multiplication, then any division, then addition and subtraction

Answer 14

If it's 2^3, the answer is 32, which is not in the option. @Data_LG2

Answer 15

It is in the choices i got the first one

Answer 16

http://sketchtoy.com/57450693 --> check my solution :)

Answer 17

oh i see he squared a+b

Answer 18

giving you 25 then adding 30 gets yu 55 then subtracting 8 gave you 47 right?

Answer 19

I didn't know (a+b)^2 look like that. I thought it looked like this (a+b) * 2.

Answer 20

I thought so too. @ftjcgfykcffhvfnggf next time yu pose a question use the appropriate symbols(^) to signify operations ok?

Answer 21

ok