Evaluate
1-5a-12a^{2}
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1-5a-12a^{2}
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\frac{-3\times 12a\left(a-\left(-\frac{1}{24}\sqrt{73}-\frac{5}{24}\right)\right)\left(a-\left(\frac{1}{24}\sqrt{73}-\frac{5}{24}\right)\right)}{3a}
Factor the expressions that are not already factored.
-12\left(a-\left(-\frac{1}{24}\sqrt{73}-\frac{5}{24}\right)\right)\left(a-\left(\frac{1}{24}\sqrt{73}-\frac{5}{24}\right)\right)
Cancel out 3a in both numerator and denominator.
-12a^{2}-5a+1
Expand the expression.
\frac{-3\times 12a\left(a-\left(-\frac{1}{24}\sqrt{73}-\frac{5}{24}\right)\right)\left(a-\left(\frac{1}{24}\sqrt{73}-\frac{5}{24}\right)\right)}{3a}
Factor the expressions that are not already factored.
-12\left(a-\left(-\frac{1}{24}\sqrt{73}-\frac{5}{24}\right)\right)\left(a-\left(\frac{1}{24}\sqrt{73}-\frac{5}{24}\right)\right)
Cancel out 3a in both numerator and denominator.
-12a^{2}-5a+1
Expand the expression.
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