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Solve x2 − 90 = 0. If necessary, round to the nearest hundredth.
8100
±9.49
There is no solution as you cannot take the square root of a negative number.
±180

Respuesta :

igoroleshko156

Answer:

Option B, [tex]x =[/tex] ± [tex]9.49[/tex]

Step-by-step explanation:

Step 1:  Add 90 to both sides

[tex]x^2 - 90 = 0[/tex]

[tex]x^2 - 90 + 90 = 0 + 90[/tex]

[tex]x^2 = 90[/tex]

Step 2:  Square root both sides

[tex]\sqrt{x^2} = \sqrt{90}[/tex]

[tex]x =[/tex] ± [tex]9.49[/tex]

Answer: Option B, [tex]x =[/tex] ± [tex]9.49[/tex]

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