Question
Expand the expression
−log10(x)+9
Evaluate
−log10(1×x(10−9))
Calculate
−log10(1×x×10−9)
Multiply the terms
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Multiply the terms
1×x×10−9
Rewrite the expression
x×10−9
Use the commutative property to reorder the terms
10−9x
−log10(10−9x)
Rewrite the expression
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Evaluate
10−9x
Express with a positive exponent using a−n=an1
1091×x
Rewrite the expression
109x
−log10(109x)
Use loga(yx)=loga(x)−loga(y) to transform the expression
−(log10(x)−log10(109))
Use logaan=n to simplify the expression
−(log10(x)−9)
Solution
−log10(x)+9
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