56a−(a−1)2a\frac{5}{6a}-\frac{\left(a-1\right)}{2a}6a5−2a(a−1)
t2+ 9t + 81\:t^2+\:9t\:+\:81t2+9t+81
5a2−6a+7a2+3a−2+8a+75a^2-6a+7a^2+3a-2+8a+75a2−6a+7a2+3a−2+8a+7
y−0.7yy-0.7yy−0.7y
(5x2+y3)(5x2−3y3)\left(5x^2+y^3\right)\left(5x^2-3y^3\right)(5x2+y3)(5x2−3y3)
ln(t) tan(t)\ ln\left(t\right)\:tan\left(t\right) ln(t)tan(t)
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