Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
K−9K4
Evaluate
K−K4×9
Solution
K−9K4
Show Solution
Factor the expression
K(1−9K3)
Evaluate
K−K4×9
Use the commutative property to reorder the terms
K−9K4
Rewrite the expression
K−K×9K3
Solution
K(1−9K3)
Show Solution
Find the roots
K1=0,K2=333
Alternative Form
K1=0,K2≈0.48075
Evaluate
K−K4×9
To find the roots of the expression,set the expression equal to 0
K−K4×9=0
Use the commutative property to reorder the terms
K−9K4=0
Factor the expression
K(1−9K3)=0
Separate the equation into 2 possible cases
K=01−9K3=0
Solve the equation
More Steps
Evaluate
1−9K3=0
Move the constant to the right-hand side and change its sign
−9K3=0−1
Removing 0 doesn't change the value,so remove it from the expression
−9K3=−1
Change the signs on both sides of the equation
9K3=1
Divide both sides
99K3=91
Divide the numbers
K3=91
Take the 3-th root on both sides of the equation
3K3=391
Calculate
K=391
Simplify the root
More Steps
Evaluate
391
To take a root of a fraction,take the root of the numerator and denominator separately
3931
Simplify the radical expression
391
Multiply by the Conjugate
39×392392
Simplify
39×392333
Multiply the numbers
32333
Reduce the fraction
333
K=333
K=0K=333
Solution
K1=0,K2=333
Alternative Form
K1=0,K2≈0.48075
Show Solution