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= (2x^2 - 3x) + (8x - 12)
= x(2x - 3) + 4( 2x - 3 )
=(2x - 3)(x + 4)
2x^2 - 5x - 12
= (2x^2 + 3x) - (8x + 12)
= x(2x + 3) - 4( 2x + 3 )
=(2x + 3)(x - 4)
⇒ 1/2.2 ( x + 4 ) ( 2x - 3 )
⇒ ( x + 4 ) ( 2x - 3 )
2x² - 5x - 12 ⇒ 1/2 ( 2x - 8 ) ( 2x + 3 )
⇒ 1/2.2 ( x - 4 ) ( 2x + 3 )
⇒ ( x - 4 ) ( 2x + 3 )