SOLUTION: I need help with this problem. Can someone write out the steps if possible. Thank you.
Factor the polynomial into two polynomials of lesser degrees given one of its factors:
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Question 53491: I need help with this problem. Can someone write out the steps if possible. Thank you.
Factor the polynomial into two polynomials of lesser degrees given one of its factors:
((x^3+2x^2-5x-6; factor: x-2))))))))))
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
; factor: x-2 [Use synthetic division or regular division to solve]
.
Since (x-2) is one of the factors, divide the polynomial by (x-2):
.
x-2=0
x=2 [Divisor]
.
.
1+2-5-6 [Use only the coefficients for the dividend]
.
________________________
1 [Bring down the very first coefficient of "1"]
.
1+2-5-6 [Dividend]
0+2
________________________
1+4 [Begin to "divide" by 2 by multiplying [(1*2) + 2)=4]
.
.
1+2-5-6 [Dividend]
0+2+8
________________________
1+4+3 [Continue to "divide" by 2 by multiplying [(4*2)+(-5)=3]
.
.
1+2-5-6 [Dividend]
0+2+8+6
________________________
1+4+3+0 [Continue to "divide" by 2 by multipling [(3*2) + (-6)=0][Quotient]
[Re-apply the coefficents to the "x"terms minus one. For example you started with x^3, so the quotient will start with x^2]
.
So, the factors are
Check by multiplying the factors to get the original polynomial.
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