+0  
 
0
463
3
avatar

the equation is 2*2 to the second power plus 3 *2 *-4 minus 4* -4 to the second power. i keep getting 48 but the answer choices are -80 -32 32 and 80

 Dec 1, 2016
 #1
avatar+129840 
0

Could you write this out ???....it's difficult to tell what you have from the description

 

 

 

cool cool cool

 Dec 1, 2016
 #2
avatar
0

2*2^2+3*2*-4^2= there you go Cphil

 Dec 1, 2016
 #3
avatar+129840 
0

2*2^2+3*2*-4^2  =

 

2 * 4 +  6* (-1) * 4^2  =

 

8 - 6 (16)   =

 

8 - 96   =

 

-88

 

Wolframalpha confirms the same answer : https://www.wolframalpha.com/input/?i=2*2%5E2%2B3*2*-4%5E2

 

[ Are you sure that you have this written correctly  ???  ]

 

 

cool cool  cool

 Dec 1, 2016

0 Online Users