What value(s) of x make the equation x^2 - 18x+81=0 true
9
-9,9
0,9
0,-9,9

Question

vereniceleal8 vereniceleal8

04-12-2017
Mathematics

contestada

What value(s) of x make the equation x^2 - 18x+81=0 true
9
-9,9
0,9
0,-9,9

Respuesta :

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PLEASE HELP . as soon as possible

JonHenderson55 JonHenderson55 · Answer 1 · 2017-12-04T02:27:46+01:00

The answer is: [A]: " 9 " .
______________________________
Explanation:
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x² − 18x + 81 = 0 ;

→ factors into:

(x − 9) (x − 9) = 0 ;

x − 9 = 0 ; Solve for "x" ;

Add "9" to each side of the equation; to isolate "x" on one side of the equation; and to solve for "x" ;

x − 9 + 9 = 0 + 9 ;

to get:

x = 9 ;
__________________________________________________
The answer is: [A]: " 9 " .
__________________________________________________

What value(s) of x make the equation x^2 - 18x+81=0 true 9 -9,9 0,9 0,-9,9

Respuesta :

Otras preguntas

What value(s) of x make the equation x^2 - 18x+81=0 true
9
-9,9
0,9
0,-9,9