PhantomPac PhantomPac

24-04-2021
Mathematics

contestada

I am confused on this quadratic problem.
I am thinking it is (x+5)^2=81.

Here's the problem: The sum of a number and 5 is squared. The result is 81.

Respuesta :

thebecks thebecks

24-04-2021

Answer:

(x+5)^2=81 would be correct

Step-by-step explanation:

solution (if you want it)

x² + 10x + 25 = 81

x² + 10x - 56 = 0

(x + 14)(x - 4) = 0

x = 4, x = -14

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