Question

19) *
The one root of X2 – X-6 = 0 is
O a) 1
O b) 2
O c) 3
O d) 4​

Answer 1

Answer:

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Answer 2

Answer:

c) x = 3.

Step-by-step explanation:

x² - x - 6 = 0

x² - 3x + 2x - 6 = 0     # Factorizing

x (x - 3) + 2 (x - 3) = 0

(x + 2) (x - 3) = 0  ⇒ x + 2 = 0, x - 3 = 0

∴ x = 3, -2.

∴ x = 3.