Math, asked by chandansingh21101980, 9 months ago

गुणनखंड ज्ञात कीजिए एक्स स्क्वायर माइनस टू एक्स स्क्वायर माइनस एक्स प्लस टू​

Answers

Answered by amitnrw
0

Given :  x³ - 2x² - x + 2

To Find : गुणनखंड

Solution:

x³ - 2x² - x + 2

=x²(x - 2) - 1(x - 2)

Taking x - 2 common

=(x - 2)(x² - 1)

using a² - b² = (a + b)(a - b)

a = x  b = 1

= (x - 2)(x + 1)(x - 1)

x³ - 2x² - x + 2 = (x - 2)(x + 1)(x - 1)

एक्स स्क्वायर माइनस टू एक्स स्क्वायर माइनस एक्स प्लस टू​

x² - 2x² - x + 2

=  -  x² - x + 2

= -  x² +x - 2x + 2

=  x(-x + 1) + 2(-x + 1)

= (x + 2)(1 - x)

x² - 2x² - x + 2 = (x + 2)(1 - x)

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