[tex] \bold{( - 8x \: + \: 4)(7x \: - \: 3)}[/tex]
[tex] \bold{ - 8x \: \times \: 7 \: - \: 8x \: \times \: ( - 3) \: + \: 4 \: \times \: 7x \: - \: 4 \: \times \: 3}[/tex]
[tex] \bold{ { - 56x}^{2} \: + \: 24x \: + \: 28x \: - \: 12}[/tex]
[tex] \boxed{\bold{ { - 56x}^{2} \: + \: 52x \: - \: 12}}[/tex]
Besitos OvO
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[tex] \bold{( - 8x \: + \: 4)(7x \: - \: 3)}[/tex]
[tex] \bold{ - 8x \: \times \: 7 \: - \: 8x \: \times \: ( - 3) \: + \: 4 \: \times \: 7x \: - \: 4 \: \times \: 3}[/tex]
[tex] \bold{ { - 56x}^{2} \: + \: 24x \: + \: 28x \: - \: 12}[/tex]
[tex] \boxed{\bold{ { - 56x}^{2} \: + \: 52x \: - \: 12}}[/tex]
R// A) -56x² + 52x - 12
Besitos OvO