Question
Solve the quadratic equation
Solve using the quadratic formula
Solve by completing the square
Solve using the PQ formula
x1=16−2114,x2=16+2114
Alternative Form
x1≈−5.354157,x2≈37.354157
Evaluate
x2−32x−200=0
Substitute a=1,b=−32 and c=−200 into the quadratic formula x=2a−b±b2−4ac
x=232±(−32)2−4(−200)
Simplify the expression
More Steps

Evaluate
(−32)2−4(−200)
Multiply the numbers
More Steps

Evaluate
4(−200)
Multiplying or dividing an odd number of negative terms equals a negative
−4×200
Multiply the numbers
−800
(−32)2−(−800)
Rewrite the expression
322−(−800)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
322+800
Evaluate the power
1024+800
Add the numbers
1824
x=232±1824
Simplify the radical expression
More Steps

Evaluate
1824
Write the expression as a product where the root of one of the factors can be evaluated
16×114
Write the number in exponential form with the base of 4
42×114
The root of a product is equal to the product of the roots of each factor
42×114
Reduce the index of the radical and exponent with 2
4114
x=232±4114
Separate the equation into 2 possible cases
x=232+4114x=232−4114
Simplify the expression
More Steps

Evaluate
x=232+4114
Divide the terms
More Steps

Evaluate
232+4114
Rewrite the expression
22(16+2114)
Reduce the fraction
16+2114
x=16+2114
x=16+2114x=232−4114
Simplify the expression
More Steps

Evaluate
x=232−4114
Divide the terms
More Steps

Evaluate
232−4114
Rewrite the expression
22(16−2114)
Reduce the fraction
16−2114
x=16−2114
x=16+2114x=16−2114
Solution
x1=16−2114,x2=16+2114
Alternative Form
x1≈−5.354157,x2≈37.354157
Show Solution
