Question

(x+6) is a factor of x^2-x-42

Answer 1

this is the answer of the question

Answer 2

HEYA!!
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Given polynomial P ( X ). = X^2 - X - 42

⭐We need to check weather X+ 6 is a factor of P(X) or not !


X + 6 = 0

X = -6 --------------------------[1]

Put X = -6 in P ( X )

(-6)^2 - (-6) -42

36 + 6 - 42

42 - 42

= 0

Hence , As P (X) is Zero for X = -6 . So we can say that Yes, it is a factor of P(X)


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