huangjianhe135
08.10.2019 •
Mathematics
Determine the type and number of solutions of x^2-8x+16=0
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Ответ:
The discriminant would be b^2-4ac___64-4*1*16=0
The factors show x=4,x=4; a double root and the discriminant shows 0 which is also 1 real rational zero
Ответ:
anyway, what 2 numbers multiply to get 16 and add to get -8
-4 and -4
(x-4)(x-4)=0
(x-4)²=0
set to zeo
x-4=0
x=4
there is 1 soltuion repeated twice (x=4)
Ответ: