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descompuneti in factori: 9xla2(×-3)+12×(×-3)+4(×-3)​

Răspuns :

19999991
[tex]9 {x}^{2} (x - 3) + 12x(x - 3) + 4(x - 3)[/tex]

[tex] = (x - 3)(9 {x}^{2} + 12x + 4)[/tex]

[tex]=(x-3)[{(3x)}^{2}+2\times3x\times2+{2}^{2}][/tex]

[tex] = (x - 3) {(3x + 2)}^{2} [/tex]

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