helenale06oxol3w helenale06oxol3w

04-12-2019
Mathematics

contestada

What is the value of c so that -9 and 9 are both solutions of x^2 + c = 103?

Respuesta :

sqdancefan sqdancefan

05-12-2019

Answer:

c = 22

Step-by-step explanation:

The given equation can be written as ...

x^2 = 103 -c

In order for -9 and +9 to be solutions, the equation needs to be ...

x^2 = 81

So, we must have ...

103 -c = 81

c = 103 -81 = 22

The value of c must be 22.

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