Question
Solve the quadratic equation
Solve using the quadratic formula
Solve by completing the square
Solve using the PQ formula
x1=5−11,x2=5+11
Alternative Form
x1≈1.683375,x2≈8.316625
Evaluate
x2−10x=−14
Move the expression to the left side
x2−10x+14=0
Substitute a=1,b=−10 and c=14 into the quadratic formula x=2a−b±b2−4ac
x=210±(−10)2−4×14
Simplify the expression
More Steps

Evaluate
(−10)2−4×14
Multiply the numbers
(−10)2−56
Rewrite the expression
102−56
Evaluate the power
100−56
Subtract the numbers
44
x=210±44
Simplify the radical expression
More Steps

Evaluate
44
Write the expression as a product where the root of one of the factors can be evaluated
4×11
Write the number in exponential form with the base of 2
22×11
The root of a product is equal to the product of the roots of each factor
22×11
Reduce the index of the radical and exponent with 2
211
x=210±211
Separate the equation into 2 possible cases
x=210+211x=210−211
Simplify the expression
More Steps

Evaluate
x=210+211
Divide the terms
More Steps

Evaluate
210+211
Rewrite the expression
22(5+11)
Reduce the fraction
5+11
x=5+11
x=5+11x=210−211
Simplify the expression
More Steps

Evaluate
x=210−211
Divide the terms
More Steps

Evaluate
210−211
Rewrite the expression
22(5−11)
Reduce the fraction
5−11
x=5−11
x=5+11x=5−11
Solution
x1=5−11,x2=5+11
Alternative Form
x1≈1.683375,x2≈8.316625
Show Solution
