Question
Solve the quadratic equation
Solve using the quadratic formula
Solve by completing the square
Solve using the PQ formula
w1=13−210,w2=13+210
Alternative Form
w1≈−1.491377,w2≈27.491377
Evaluate
w2−26w−41=0
Substitute a=1,b=−26 and c=−41 into the quadratic formula w=2a−b±b2−4ac
w=226±(−26)2−4(−41)
Simplify the expression
More Steps

Evaluate
(−26)2−4(−41)
Multiply the numbers
More Steps

Evaluate
4(−41)
Multiplying or dividing an odd number of negative terms equals a negative
−4×41
Multiply the numbers
−164
(−26)2−(−164)
Rewrite the expression
262−(−164)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
262+164
Evaluate the power
676+164
Add the numbers
840
w=226±840
Simplify the radical expression
More Steps

Evaluate
840
Write the expression as a product where the root of one of the factors can be evaluated
4×210
Write the number in exponential form with the base of 2
22×210
The root of a product is equal to the product of the roots of each factor
22×210
Reduce the index of the radical and exponent with 2
2210
w=226±2210
Separate the equation into 2 possible cases
w=226+2210w=226−2210
Simplify the expression
More Steps

Evaluate
w=226+2210
Divide the terms
More Steps

Evaluate
226+2210
Rewrite the expression
22(13+210)
Reduce the fraction
13+210
w=13+210
w=13+210w=226−2210
Simplify the expression
More Steps

Evaluate
w=226−2210
Divide the terms
More Steps

Evaluate
226−2210
Rewrite the expression
22(13−210)
Reduce the fraction
13−210
w=13−210
w=13+210w=13−210
Solution
w1=13−210,w2=13+210
Alternative Form
w1≈−1.491377,w2≈27.491377
Show Solution
