1+1
(10⁵)⁵
3/3 x 8/7=
$x^{2}$ + (x + 1)2 = (2x − 1)(x + 4)
-4-(6-2)
2/3 × 2/3=
180/(5*3)
(2x − 1)(x − 3) = (2x − 3)(x − 1)
(128) &2/7
1/2 x 7/8=