Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−2l−l2
Evaluate
l−3l−l×1×l
Multiply the terms
More Steps
Multiply the terms
−l×1×l
Rewrite the expression
−l×l
Multiply the terms
−l2
l−3l−l2
Solution
More Steps
Evaluate
l−3l
Collect like terms by calculating the sum or difference of their coefficients
(1−3)l
Subtract the numbers
−2l
−2l−l2
Show Solution
Factor the expression
−l(2+l)
Evaluate
l−3l−l×1×l
Multiply the terms
More Steps
Multiply the terms
l×1×l
Rewrite the expression
l×l
Multiply the terms
l2
l−3l−l2
Subtract the terms
More Steps
Simplify
l−3l
Collect like terms by calculating the sum or difference of their coefficients
(1−3)l
Subtract the numbers
−2l
−2l−l2
Rewrite the expression
−l×2−l×l
Solution
−l(2+l)
Show Solution
Find the roots
l1=−2,l2=0
Evaluate
l−3l−l×1×l
To find the roots of the expression,set the expression equal to 0
l−3l−l×1×l=0
Multiply the terms
More Steps
Multiply the terms
l×1×l
Rewrite the expression
l×l
Multiply the terms
l2
l−3l−l2=0
Subtract the terms
More Steps
Simplify
l−3l
Collect like terms by calculating the sum or difference of their coefficients
(1−3)l
Subtract the numbers
−2l
−2l−l2=0
Factor the expression
More Steps
Evaluate
−2l−l2
Rewrite the expression
−l×2−l×l
Factor out −l from the expression
−l(2+l)
−l(2+l)=0
When the product of factors equals 0,at least one factor is 0
−l=02+l=0
Solve the equation for l
l=02+l=0
Solve the equation for l
More Steps
Evaluate
2+l=0
Move the constant to the right-hand side and change its sign
l=0−2
Removing 0 doesn't change the value,so remove it from the expression
l=−2
l=0l=−2
Solution
l1=−2,l2=0
Show Solution