Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−2x−x2
Evaluate
−x−x−x×x
Multiply the terms
−x−x−x2
Solution
More Steps
Evaluate
−x−x
Collect like terms by calculating the sum or difference of their coefficients
(−1−1)x
Subtract the numbers
−2x
−2x−x2
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Factor the expression
−x(2+x)
Evaluate
−x−x−x×x
Multiply the terms
−x−x−x2
Subtract the terms
More Steps
Simplify
−x−x
Collect like terms by calculating the sum or difference of their coefficients
(−1−1)x
Subtract the numbers
−2x
−2x−x2
Rewrite the expression
−x×2−x×x
Solution
−x(2+x)
Show Solution
Find the roots
x1=−2,x2=0
Evaluate
−x−x−x×x
To find the roots of the expression,set the expression equal to 0
−x−x−x×x=0
Multiply the terms
−x−x−x2=0
Subtract the terms
More Steps
Simplify
−x−x
Collect like terms by calculating the sum or difference of their coefficients
(−1−1)x
Subtract the numbers
−2x
−2x−x2=0
Factor the expression
More Steps
Evaluate
−2x−x2
Rewrite the expression
−x×2−x×x
Factor out −x from the expression
−x(2+x)
−x(2+x)=0
When the product of factors equals 0,at least one factor is 0
−x=02+x=0
Solve the equation for x
x=02+x=0
Solve the equation for x
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Evaluate
2+x=0
Move the constant to the right-hand side and change its sign
x=0−2
Removing 0 doesn't change the value,so remove it from the expression
x=−2
x=0x=−2
Solution
x1=−2,x2=0
Show Solution