-15a^2-25/5=40a-5

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Solution for -15a^2-25/5=40a-5 equation: 


a in (-oo:+oo)

-15*a^2-(25/5) = 40*a-5 // - 40*a-5

5-15*a^2-(40*a)-(25/5) = 0

5-15*a^2-40*a-5 = 0

-15*a^2-40*a = 0

DELTA = (-40)^2-(-15*0*4)

DELTA = 1600

DELTA > 0

a = (1600^(1/2)+40)/(-15*2) or a = (40-1600^(1/2))/(-15*2)

a = -8/3 or a = 0

a in { -8/3, 0 }

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