问题
Simplify the expression
−2s
Evaluate
s(−1)+s(−1)
Rewrite the expression
s(−1)+s(−1)×1
Multiplying or dividing an odd number of negative terms equals a negative
−s+s(−1)×1
Multiply the terms
更多步骤
Multiply the terms
s(−1)×1
Rewrite the expression
s(−1)
Multiplying or dividing an odd number of negative terms equals a negative
−s
−s−s
Collect like terms by calculating the sum or difference of their coefficients
(−1−1)s
解题方案
−2s
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Find the roots
s=0
Evaluate
s(−1)+s(−1)
To find the roots of the expression,set the expression equal to 0
s(−1)+s(−1)=0
Multiplying or dividing an odd number of negative terms equals a negative
−s+s(−1)=0
Multiplying or dividing an odd number of negative terms equals a negative
−s−s=0
Subtract the terms
更多步骤
Evaluate
−s−s
Collect like terms by calculating the sum or difference of their coefficients
(−1−1)s
Subtract the numbers
−2s
−2s=0
Change the signs on both sides of the equation
2s=0
解题方案
s=0
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