Factor 6x4 - 5x2 + 12x2 - 10 by grouping. What is the resulting expression? (6x + 5) (x2 - 2)

Question

Mathematics

Taniya Henderson

28 December, 11:15

Factor 6x4 - 5x2 + 12x2 - 10 by grouping. What is the resulting expression? (6x + 5) (x2 - 2)

+2

Answers (1)

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Josue · Answer 1

6x^4 - 5x² + 12x² - 10

6x^4 + 7x² - 10

6x^4 ⇒ 3x² * 2x²

-10 ⇒ 5 * - 2

(6x² - 5) (x² + 2)

6x² (x² + 2) - 5 (x² + 2)

6x^4 + 12x² - 5x² - 10

6x^4 + 7x² - 10

6x² - 5 = 0

x² = 5/6

x = √5/6

x² + 2 = 0

x² = - 2

x = √-2