Question

6x²-5x-21 factorise it​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

x = -3/2 and 7

Step-by-step explanation:

6x² - 5x - 21

6x² - (14 - 9)x - 21

6x² - 14x + 9x - 21

2x(3x - 7). +3(3x - 21)

(2x + 3)(3x - 21)

2x = -3 and x = 21/3

x = -3/2 and 7