Question

factorize 9z(cube) - 27z(sq) - 100z +300

Answer 1

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Answer 2

9z³-27z²-100z+300
9z²(z-3)-100(z-3)
(z-3) (9z²-100)
(z-3) [(3z)²-(10)²]
(z-3) (3z+10) (3z-10)