Show all steps to factor completely x^4− 5x+ 4

I tried to do this but the gcf was 1 so im confuse??
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17 in long 1.3 ft wide and 8in high what is the volume

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box