12+(x-1)²=-2x
simplify 2xy+6x+2+2yx+x+y
factorize 18px^2-50py^2
COMMON FACTORS OF 12 AND 18
26+44=(x+2)²
636,387,223,122,337,647,480 / 39 =
5x-4x-2x-2-x+1=1-2x
factorize 16b^2-81a^2
√π²×45-71/7+∆^²43*(912²)
$1 + \frac{\tan(20^\circ)}{\cot(65,5^\circ)}$
