Ano ang isang parisukat equation pagkakaroon Roots sqrt 7 at - sqrt 7?

Ano ang isang parisukat equation pagkakaroon Roots sqrt 7 at - sqrt 7?
Anonim

Sagot:

# x ^ 2 = 7 #

Paliwanag:

# sqrt7 at -sqrt7 #

Hakbang-hakbang!

#x = sqrt7 at x = -sqrt7 #

#x -sqrt7 = 0 at x + sqrt7 = 0 #

# (x - sqrt7) (x + sqrt7) = 0 #

# x ^ 2 + xsqrt7 -xsqrt7 - 7 = 0 #

# x ^ 2 + 0 - 7 = 0 #

# x ^ 2 - 7 = 0 #

# x ^ 2 = 7 -> "Equation" #

Katunayan..

# x ^ 2 = 7 #

#x = + -sqrt7 #

#x = + sqrt7 o -sqrt 7 #