16x^2(x^2+x) - 24x(x^2+x) + 9(x^2+x)
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16x^2(x^2 + x) - 24x(x^2 + x) + 9(x^2 + x)
factor out (x^2 + x)
(x^2 + x)[16x^2 - 24x + 9]
(x^2 + x)[(4x - 3)(4x - 3)]
(x^2 + x)(4x - 3)^2 <====
factor out (x^2 + x)
(x^2 + x)[16x^2 - 24x + 9]
(x^2 + x)[(4x - 3)(4x - 3)]
(x^2 + x)(4x - 3)^2 <====
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16x^2(x^2+x) - 24x(x^2+x) + 9(x^2+x)
(x^2+x) * (16x^2 - 24x + 9 )
(x^2+x) * (16x^2 - 24x + 9 )