Question 13: \( – {\left( { – 20. {x^3}} \right)^2}\) is equal to:
\( – {\left( { – 20. {x^3}} \right)^2} = – {\left( {20. {x^3}} \right)^2} = – {20^2 }. {\left( {{x^3}} \right)^2} = – 400. {x^6}\)
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Question 13: \( – {\left( { – 20. {x^3}} \right)^2}\) is equal to:
\( – {\left( { – 20. {x^3}} \right)^2} = – {\left( {20. {x^3}} \right)^2} = – {20^2 }. {\left( {{x^3}} \right)^2} = – 400. {x^6}\)
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