$3h+h-5h+8h$
$\left(-2\right)^5\:+\:\left(-5\right)^2\:+\:\left(-3\right)^3$
$\left(+11\right)-\left(-11\right)$
$x^4-5x^3+4x-48$
$-9x^2-30x-25$
$10\left(v-7\right)$
$2-12+2+14+3$
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