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    you know that root question,
    i used 1.695 and 1.705 but there was no sign change, the question said show that there is one positive root right? And when i put 1.695 and 1.705 into the equation the answer was 1.70 therefore, one positive root, there wasn't any sign change, correct me if im wrong anyone please.
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    if u put 1.695 in the equation you'll get a -ve answer, wen u put 1.705 in ull get a +ve answer. hence the root is 1.70 to 2dp
 
 
 
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