$25p^2-35p+9$
$\:\:2,150=2.25x+5.75$
$\frac{\left(3x+4\right)}{5}+2\le\frac{\left(x+3\right)}{4}$
$\left(coc^2\left(x\right)-1\right)\left(tan^2\left(x\right)+1\right)$
$-\frac{284}{-2}$
$23,5\cdot7,54$
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