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Mathematics 21 Online
OpenStudy (anonymous):

Can someone please help me with this math problem? Evaluate the expression 2(8 − 4)2 − 10 ÷ 2. 11 27 56 59

OpenStudy (chantysquirrel1129**):

PEMDAS

OpenStudy (anonymous):

Yes I understand that but I'm having trouble getting the correct answer

OpenStudy (anonymous):

\[2(8 − 4)^2 − 10 ÷ 2\]just to make it clearer

OpenStudy (chantysquirrel1129**):

Do what's inside the parenthesis first c:

OpenStudy (anonymous):

4

OpenStudy (chantysquirrel1129**):

OK, so now the equation looks like this: \[2(4)^{2}-10\div4\]

OpenStudy (chantysquirrel1129**):

ok, now do this part: \[2(4)^{2}\]

OpenStudy (chantysquirrel1129**):

What is 2 x 4, and then when you get the answer to that, square it c:

OpenStudy (anonymous):

so then 2*16-10 / 4 ?

OpenStudy (anonymous):

I got 27...?

OpenStudy (chantysquirrel1129**):

Noo, I didn't get 27 :p

OpenStudy (chantysquirrel1129**):

Here, take it slowly :D

OpenStudy (chantysquirrel1129**):

So what did you get for this part: \[2(4)^{2}\]

OpenStudy (chantysquirrel1129**):

@StrategicBac0n

OpenStudy (chantysquirrel1129**):

2 x 4 = 8, now square 8, which is 8 x 8. so what is 8 x 8 = ?

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