Q 9. Factorize : (x2-4x)(x2-4x-1)-20
O A. (2-5)(2+1) (-2)
O B.(3-5) (+1)(3-2)(2-2)
O C. (x+5)(x-2)2
O D. (x+5)(x+1)(x-1)
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(x -2)²( x + 1)(x -5) is the answer.....see the pic for 1st one
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