Is x + 3 is a factor of x³ - 5x² + 2x -9
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Answer:
No x+3 is not a factor of x^3 - 5x^2 + 2x - 9
Since remainder -87 is coming instead of 0
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Step-by-step explanation:
Let, g[x] = x+3
so, x = -3
given:
p[x] = x^3 -5x^2 +2x -9
so, R[-3] = 3^3 -5x[-3]^2+ 2x[-3]-9
= 27 - 45 - 6 -9
= -33
because, x is not = 0
therefore, x+3 is not a factor of x^3-5x^2 +2x -9.
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