Question
Find the roots
x1=21−241,x2=21+241
Alternative Form
x1≈−7.262087,x2≈8.262087
Evaluate
x2−x−60
To find the roots of the expression,set the expression equal to 0
x2−x−60=0
Substitute a=1,b=−1 and c=−60 into the quadratic formula x=2a−b±b2−4ac
x=21±(−1)2−4(−60)
Simplify the expression
More Steps

Evaluate
(−1)2−4(−60)
Evaluate the power
1−4(−60)
Multiply the numbers
More Steps

Evaluate
4(−60)
Multiplying or dividing an odd number of negative terms equals a negative
−4×60
Multiply the numbers
−240
1−(−240)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
1+240
Add the numbers
241
x=21±241
Separate the equation into 2 possible cases
x=21+241x=21−241
Solution
x1=21−241,x2=21+241
Alternative Form
x1≈−7.262087,x2≈8.262087
Show Solution
