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Answered

Find p so that x²-4x+p=0 has one root.
Select one:
a. 2
b. -4
c. -2
d. 4

Sagot :

CASANDRASAKALAMIN

D. 4

Checkings:

p = ?

x² - 4x + (p) = 0

x² - 4x + (4) = 0

x² - 4x + 4 = 0

(x - 2) (x - 2) = 0

x - 2 = 0 | x - 2 = 0

x - 2 + 2 = 0 + 2

x = 2 it has one root :3

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