Question

К * К - 3      К + К * К - К      К -6 * К - 10      3 . К * 2 . К

Answer 1

1)К×К-3=2К-3
2)К+К×К-К=2К×1К
3)К×2.К=2К.К

Answer 2

To evaluate the given expressions, let's substitute the variable K with a specific value. Let's assume K equals 2.

Expression 1: K * K - 3 = 2 * 2 - 3 = 4 - 3 = 1.

Expression 2: K + K * K - K = 2 + 2 * 2 - 2 = 2 + 4 - 2 = 4.

Expression 3: K - 6 * K - 10 = 2 - 6 * 2 - 10 = 2 - 12 - 10 = -20.

Expression 4: 3 . K * 2 . K = 3 * 2 * 2 = 12.

Using the assumption that K equals 2, the evaluated expressions are:

Expression 1: 1 Expression 2: 4 Expression 3: -20 Expression 4: 12