jasmin3933 jasmin3933

23-10-2020
Mathematics

contestada

PLEASE HELP
x2 – 18x + 81 = 5
Solve using square root

Respuesta :

abcdefdfgfghh abcdefdfgfghh

23-10-2020

Answer:

x = ± [tex]\sqrt{5}[/tex] + 9

Step-by-step explanation:

x^(2) -18x + 81 = 5

factor

(x - 9)^(2) = 5

solve using inverse operations

x - 9 = ± [tex]\sqrt{5}[/tex]

x = ± [tex]\sqrt{5}[/tex] + 9

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