Posted by Faye on Saturday, August 16, 2014 at 12:40am.
Simplify
5(1420²/2
My answer is 360

Algebra  Faye, Saturday, August 16, 2014 at 12:42am
it should read 5(142)²/2

Algebra  Bosnian, Saturday, August 16, 2014 at 12:52am
5 * ( 14  20 ) / 2 =
5 * (  6 ) / 2 = 30 / 2 =  15

Algebra  Damon, Saturday, August 16, 2014 at 2:26am
I am not sure your superscript shows up on everyone's screen.
5 (1420)^2 /2
= 5 * 36 /2
= 5 * 18
= 90

Algebra  Steve, Saturday, August 16, 2014 at 6:06am
It appears that the 0 was a typo for ), making the problem
5(142)^2/2 = 5*12^2/2 = 5*144/2 = 360
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