Malik545
Malik545
04-03-2017
Mathematics
contestada
How do you solve? Help?
Respuesta :
sdmatera
sdmatera
04-03-2017
Plug in a -20 wherever you see a b
(-20)^2 +4*-20-89/13
400 + -80-89/13
400 - 169/13
400-13
=387
Hope this helps
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