Substitute a=1,b=1 and c=−1 into the quadratic formula a=2a−b±b2−4ac
a=2−1±12−4(−1)
Simplify the expression
More Steps
Evaluate
12−4(−1)
1 raised to any power equals to 1
1−4(−1)
Simplify
1−(−4)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses