Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−3s
Evaluate
i−s−s−s−i
Write the repeated addition as multiplication
i−s×3−i
Use the commutative property to reorder the terms
i−3s−i
Solution
−3s
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Find the roots
s=0
Evaluate
i−s−s−s−i
To find the roots of the expression,set the expression equal to 0
i−s−s−s−i=0
Subtract the terms
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Simplify
i−s−s
Subtract the terms
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Evaluate
−s−s
Collect like terms by calculating the sum or difference of their coefficients
(−1−1)s
Subtract the numbers
−2s
i−2s
i−2s−s−i=0
Subtract the terms
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Simplify
i−2s−s
Subtract the terms
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Evaluate
−2s−s
Collect like terms by calculating the sum or difference of their coefficients
(−2−1)s
Subtract the numbers
−3s
i−3s
i−3s−i=0
Since two opposites add up to 0,remove them form the expression
−3s=0
Change the signs on both sides of the equation
3s=0
Solution
s=0
Show Solution