marieamberr
marieamberr
09-04-2018
Mathematics
contestada
What is the value of x?
x =
Respuesta :
calculista
calculista
09-04-2018
we know that
The Intersecting secant theorem established
EC*ED=EB*EA
so
(x+4)*(x+5)=(x+1)*(x+12)--------> x²+5x+4x+20=x²+12x+x+12
x²+5x+4x+20=x²+12x+x+12-------> 9x+20=13x+12-----> 4x=8-----> x=2
the answer is x=2
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