Answer:
21
Step-by-step explanation:
yeah 2+2 is 21 thanks for the very nonexistent question
Answer: I think its 63−332+45−6
Step-by-step explanation:
Answer:
The fifth line contains the error.
Step-by-step explanation:
Line 1 is the equation.
Lines 2, 3, and 4 are correct.
The error is in the 5th line.
The square root of a negative number is not a real number, so if this problem is solved only with real numbers, there is no solution.
If imaginary numbers are allowed, then the last line should read:
