मराठी

The factor common to the two polynomials x2 − 4 and x3 − x2 − 4x + 4 is ______. - Mathematics

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प्रश्न

The factor common to the two polynomials x2 − 4 and x3 − x2 − 4x + 4 is ______.

पर्याय

  • (x + 1)

  • (x − 1)

  • (x − 2)

  • (x − 4)

MCQ
रिकाम्या जागा भरा
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उत्तर

The factor common to the two polynomials x2 − 4 and x3 − x2 − 4x + 4 is (x − 2).

Explanation:

⇒ x2 − 4

⇒ (x − 2)(x + 2)

Factorize :

⇒ x3 − x2 − 4x + 4

⇒ (x3 − x2) − (4x − 4)

⇒ x2(x − 1) − 4(x − 1)

⇒ (x − 1)(x2 − 4)

⇒ (x − 1)(x2 − 22)

⇒ (x − 1)(x − 2)(x + 2).

Common factors between x2 − 4 and x3 − x2 − 4x + 4 = (x − 2) and (x + 2).

Hence, option (x − 2) is the correct option.

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