(x + 5) 2 – 36 = 0 (x + 5) 2 – 6 2 = 0 Using a 2 – b 2 = (a – b)(a + b) (x + 5 – 6)(x + 5 + 6) = 0 (x – 1)(x + 11) = 0 x = 1, –11

Q. 225.0( 1 Vote )

Using factorizat

Answer :

(x + 5) ² – 36 = 0
(x + 5) ² – 6 ² = 0

Using a ² – b ² = (a – b)(a + b)
(x + 5 – 6)(x + 5 + 6) = 0
(x – 1)(x + 11) = 0
x = 1, –11

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