Answer:
step 1 write the coefficient of the polynomial I'm decreasing order of the exponent
step 2 draw a line and transfer the first coefficient below it
step 3 multiplay the number below by -1 and writes it in the next open slot above the line
step 4 add the -4 and -1 write the rest below the line
step 5 repeat the multiplication and addition step from the left to right (step not shown:-1.6=-6)
step 6 the result I'd zero that's means f(-)=0,so -1 is a root
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Answers & Comments
Answer:
step 1 write the coefficient of the polynomial I'm decreasing order of the exponent
step 2 draw a line and transfer the first coefficient below it
step 3 multiplay the number below by -1 and writes it in the next open slot above the line
step 4 add the -4 and -1 write the rest below the line
step 5 repeat the multiplication and addition step from the left to right (step not shown:-1.6=-6)
step 6 the result I'd zero that's means f(-)=0,so -1 is a root