Try another version of this question Get help: Box 1: Enter your answer as a reduced fraction (like 5/3, not 10/6) or as an integer (like 4 or -2) Question 1
Simplify the expression `(-1 + 4^2 - (-6))/(-2 + 4 - 1)`.
Do not enter mixed numbers
Enter DNE for Does Not Exist, oo for Infinity `21`