please answer these two questions fast
pleaseeeeee
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8) If (x + 3) is factor of polynomial 3x² + kx + 6 then,
= 3(-3)² + k(-3) + 6 = 0
= 27 - 3k + 6 = 0
= -3k = -33
= k = 11
B) is correct answer.
9) Factor of polynomial 2y³ + y² - 2y - 1
= 2y³ - 2y + y² - 1
= 2y(y² - 1) + 1 (y² - 1)
= (2y + 1) ( y² - 1)
= (2y + 1) ( y² - 1²)
= (2y + 1) ( y + 1) (y - 1)
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this is the answer of question 8 pls follow me pls check the picture
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