(x+5)(x+5)=25/4

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Solution for (x+5)(x+5)=25/4 equation: 


x in (-oo:+oo)

(x+5)*(x+5) = 25/4 // - 25/4

(x+5)*(x+5)-(25/4) = 0

(x+5)*(x+5)-25/4 = 0

(x+5)^2-25/4 = 0

(4*(x+5)^2)/4-25/4 = 0

4*(x+5)^2-25 = 0

4*x^2+40*x+75 = 0

4*x^2+40*x+75 = 0

4*x^2+40*x+75 = 0

DELTA = 40^2-(4*4*75)

DELTA = 400

DELTA > 0

x = (400^(1/2)-40)/(2*4) or x = (-400^(1/2)-40)/(2*4)

x = -5/2 or x = -15/2

(x+15/2)*(x+5/2) = 0

((x+15/2)*(x+5/2))/4 = 0

((x+15/2)*(x+5/2))/4 = 0 // * 4

(x+15/2)*(x+5/2) = 0

( x+15/2 )

x+15/2 = 0 // - 15/2

x = -15/2

( x+5/2 )

x+5/2 = 0 // - 5/2

x = -5/2

x in { -15/2, -5/2 }

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