Question

Find the number of real-number solutions of the equation. −x2 − 10x = 25

Answer 1

Explanation:

`-x^(2) -10x-25=0 SE CAMBIA LOS SIGNOS\\x^(2) +10X+25=0 (se utiliza (a^(2) + 2 ab^(2) + b^(2)), asi factorizando la expresion).\\(x+5)^(2) =0\\x+5=0\\x= -5`

Answer 2

-2.083333333333

Explanation:

I got a rational number which is -2.083333333

-2x-10x=25

-12x=25

x=-2.083333