Factorize: (i)25a2 -10ab + b2 (ii) ( 4 25 2 - 2 9 ) (iii) x2 -4x +3, (iv) 4x2+y2+z2-4xy-2yz+4xz (v) 8x3-27y3-36x2y+54xy2
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1. 25a2-10ab+b2
=(5a)2-2. a.b+(b)2
=(5a-b)2
=(5a-b)(5a-b)
3. X2-3x-x+3
=x(x-3)-1(x-3)
=(x-3) (x-1)
=(5a)2-2. a.b+(b)2
=(5a-b)2
=(5a-b)(5a-b)
3. X2-3x-x+3
=x(x-3)-1(x-3)
=(x-3) (x-1)
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