≠

≠ means 'not equal to' and is used for equations that require =, ≈, and ≠.

2 + 4 ≠ 1
6 - 7 ≠ 1
3 x 3 ≠ 8²
9 ÷7 ≠ 3√8
3² ≠ 27.0000000001
√256 ≠ 15