Question

Evaluate the expression 2(8 − 4)^2 − 10 ÷ 2.

11
27
56
59

Answer 1

I got 11 but it was incorrect.. I don't know how else to solve this ?

Answer 2

2(8-4)^2-10 divided by 2
2(4)^2-10 divided by 2
2 x 8 - 10 divided by 2
16 - 10 divided by 2
16 - 5
11

Answer 3

That's how i got 11..

Answer 4

I got 59.

2(8 − 4)^2 − 10 ÷ 2
2(4)^2 - 10 ÷ 2 (Parentheses first)
64 - 10 ÷2 (because 2 x 4 is 8 and then 8^2 is 64)
64 - 5 (division)
59

Answer 5

You had the order down, my bad. :)

Answer 6

:p Tysm!

Answer 7

Anytime!

Answer 8

uhh well i got 27..

Answer 9

.-.

Answer 10

andy black

Answer 11

o-O

Answer 12

I'm so confused now...

Answer 13

I don't know which to choose now .-.

Answer 14

O.m.g. LOL Wolfy i got 27 also x.x

Answer 15

show ur work so we can see what we did wrong XD

Answer 16

Sure

Answer 17

Yash please xD

Answer 18

\[2(4^2)− 10\div2\]

Answer 19

How did you move the exponent from outside to inside? O_o

Answer 20

\(\color{blue}{\text{Originally Posted by}}\) @GracyGirl
I got 59.

2(8 − 4)^2 − 10 ÷ 2
2(4)^2 - 10 ÷ 2 (Parentheses first)
64 - 10 ÷2 (because 2 x 4 is 8 and then 8^2 is 64)
64 - 5 (division)
59
\(\color{blue}{\text{End of Quote}}\)
do you mean 4x4?

Answer 21

2(8 − 4)^2 − 10 ÷ 2.
use distrubtive property 1st
(16 -8)^2 -10 ÷ 2
(8)^2 - 10 ÷ 2
64 - 10 ÷ 2
54 ÷ 2
27

Answer 22

I see how @Will.H got that but shouldn't division have come before subtraction? PEMDAS?

Answer 23

Nope

Answer 24

nope

Answer 25

good work Awo

Answer 26

Why? (Asking that because I wanna learn not cuz I'm challenging you)

Answer 27

ty will <3

Answer 28

Yeah i'm so confused.. everyone tell me to use pemdas

Answer 29

^^ Same.

Answer 30

Oh well tysm everyone! ^-^

Answer 31

Normally u will have to simplify the parentheses before applying the division

Answer 32

I'm talking about this part...

64 - 10 ÷ 2
54 ÷ 2
27

You subtracted 10 instead of doing the division of 10 divided by 2

Answer 33

general rule that addition and or subtractions must be done 1st before division

Answer 34

Welp 27 was right

Answer 35

cheers

Answer 36

@Will.H do you mind if I take your solution and ask a teacher to explain it? For some reason I'm just not understanding :/

Answer 37

not at all :)
i hope i can help you more

Answer 38

Thanks :)

Answer 39

you welcome :)
C ya