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[tex]2x {}^{ 3} - 5x {}^{2} - 19x + 42[/tex]
please answer fast its urgent
[tex]2x {}^{ 3} - 5x {}^{2} - 19x + 42[/tex]
please answer fast its urgent
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Answer:
(x - 2)(x + 3)(2x - 7)
Step-by-step explanation:
Given Equation is : 2x³ - 5x² - 19x + 42
⇒ 2x³ - 4x² - x² + 2x - 21x + 42
⇒ 2x²(x - 2) - x(x - 2) - 21(x - 2)
⇒ (x - 2)(2x² - x - 21)
⇒ (x - 2)(2x² + 6x - 7x - 21)
⇒ (x - 2)[2x(x + 3) - 7(x + 3)]
⇒ (x - 2)(x + 3)(2x - 7)
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