Question 169668
7a^2-3a+14
9a^2+11a add.
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16a^2+8a+14
2(8a^2+4a+7)
{{{a=(-b+-sqrt(b^2-4*a*c))/(2*a)}}} 
a=(-4+-sqrt[4^2-4*8*7])/2*8
a=(-4+-sqrt[16-224])/16
a=(-4+-sqrt-208)/16
a=(-4+-14.42i)/16
a=-4/16 +-14.42i/16
a=-.25 +-.90139 ans.