$\left(4x^5+3x^8\right)^2$
$\left(m-9\right)\left(m-7\right)$
$\frac{\sec a}{\sin a}-\frac{\sin a}{\cos a}=\cot a$
$\left(3a^2+12\right)^3$
$6x^2+23x+20=\left(3x+4\right)\left(2x+5\right)$
$280x-80y=-40$
$8\sin\left(x\right)=2+\frac{5}{\csc\left(x\right)}$
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