1.

Solve: x2 - 4x - 3

Answer»

x− 4x − 3 = 0

⇒ x− 4x + 4 − 7 = 0

⇒ (x−2)− 7 = 0

⇒ (x−2)= 7

∴ x − 2 = −7​, +7​

x = 2 − 7​, 2 + 7​



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