Question
Factor the expression
w2(2−w2)
Evaluate
2w2−w4
Rewrite the expression
w2×2−w2×w2
Solution
w2(2−w2)
Show Solution

Find the roots
w1=−2,w2=0,w3=2
Alternative Form
w1≈−1.414214,w2=0,w3≈1.414214
Evaluate
2w2−w4
To find the roots of the expression,set the expression equal to 0
2w2−w4=0
Factor the expression
w2(2−w2)=0
Separate the equation into 2 possible cases
w2=02−w2=0
The only way a power can be 0 is when the base equals 0
w=02−w2=0
Solve the equation
More Steps

Evaluate
2−w2=0
Move the constant to the right-hand side and change its sign
−w2=0−2
Removing 0 doesn't change the value,so remove it from the expression
−w2=−2
Change the signs on both sides of the equation
w2=2
Take the root of both sides of the equation and remember to use both positive and negative roots
w=±2
Separate the equation into 2 possible cases
w=2w=−2
w=0w=2w=−2
Solution
w1=−2,w2=0,w3=2
Alternative Form
w1≈−1.414214,w2=0,w3≈1.414214
Show Solution
