Question 880986
Graph {{{y = -x^2-6x+5}}} (in <font color="green">green</font>) and {{{y = 2x+5}}} (in <font color="blue">blue</font>)


{{{ drawing( 700, 700, -15, 15, -15, 15,
grid(1),
graph( 700, 700, -15, 15, -15, 15, 0, -x^2-6x+5,2x+5)

) 
}}}


and you can see that the two intersect at the points (0,5) and (-8,-11)


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The x coordinates of those points of intersections are x = 0 and x = -8


So the two solutions to the equation {{{-x^2-6x+5=2x+5}}} are <font color="red">x = 0 or x = -8</font>