Răspuns:
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Bună,
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[tex]a)8x(2x - 1) - 6(2x - 1) = \\ (2x - 1)(8x - 6) = \\ \blue{2(2x - 1)(4x - 3)}[/tex]
[tex]b)(3x + 1) ^{2} - 5x(3x + 1) - (3x + 1) = \\ (3x + 1)(3x + 1 - 5x - 1) = \\ (3x + 1)(3x - 5x) = \\ \pink{ - 2x(3x + 1)} [/tex]
[tex]c)(x - 1)(2x + 3) - (x - 1)(5x + 1) = \\ (x - 1)[2x + 3 - (5x - 1)] = \\ (x - 1)(2x + 3 - 5x + 1) = \\ \green{ (x - 1)( - 3x + 4)}[/tex]
[tex]d)3x \sqrt{2} (2x + 1) + 5 \sqrt{2} (2x + 1) - 7x ^{2} \sqrt{2}(2x + 1) = \\ (2x + 1)(3x \sqrt{2} + 5 \sqrt{2} - 7x ^{2} \sqrt{2} ) = \\ \orange{ \sqrt{2}(2x + 1)(3x + 5 - 7x ^{2}) } [/tex]
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Sper că te-am ajutat.
