Simplify rational expression a^2+2a+1/5a+5
2 answers:
<span>a in (-oo:+oo)
a^2+2*a+(1/5)*a+5 = 0
a^2+11/5*a+5 = 0
DELTA = (11/5)^2-(1*4*5)
DELTA = -379/25
DELTA < 0
a belongs to the empty set
</span>
Simplify the expression.
5a^2 + 11a + 25 / 5
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