daltonglover4314 daltonglover4314

07-07-2020
Mathematics

contestada

what is the solution of
[tex] \sqrt{ {x}^{2} + 49 = x + 5[/tex]

Respuesta :

sqdancefan sqdancefan

15-07-2020

Answer:

x = 2.4

Step-by-step explanation:

We assume you intend ...

[tex]\sqrt{x^2+49}=x+5\\\\x^2+49=x^2+10x+25\qquad\text{square both sides}\\\\24=10x\qquad\text{subtract $x^2+25$}\\\\\boxed{2.4=x}\qquad\text{divide by 10}[/tex]

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