Question Calculate the value Calculate −2log10(21)Alternative Form ≈−2.644439 Evaluate 2−2log10(210)Simplify More Steps Evaluate −2log10(210)Simplify More Steps Evaluate log10(210)Use loga(x×y)=loga(x)+loga(y) to transform the expression log10(10)+log10(21)Use logaan=n to simplify the expression 1+log10(21) −2(1+log10(21))Multiply the numbers −2−2log10(21) 2−2−2log10(21)Solution −2log10(21)Alternative Form ≈−2.644439 Show Solution
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