AJSlizzle
AJSlizzle
17-04-2017
Mathematics
contestada
x^(2) + 10x=24 by completeing the square
Respuesta :
Cukiemihu
Cukiemihu
17-04-2017
(b/2)^2=(−5)^2
x^2−10x+(−5)^2=
24+
(−5)^
2
x^2−10x+25
=49
(x−5)^
2
=
49 (square root)
(
x
−5
)
=
±
7
x-5=7 => x=12
x-5=-7 => x=-2
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