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09-11-2021
Mathematics

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Given this quadratic equation, 2x^2-x-28=0,
List the factors of this equation.
Determine the x-intercepts.

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Аноним Аноним

09-11-2021

[tex]\\ \sf\longmapsto 2x^2-x-28=0[/tex]

[tex]\\ \sf\longmapsto 2x^2-8x+7x-28=0[/tex]

[tex]\\ \sf\longmapsto 2x(x-4)+7(x-4)=0[/tex]

[tex]\\ \sf\longmapsto (2x+7)(x-4)=0[/tex]

[tex]\\ \sf\longmapsto x=7/2\:or\:x=4[/tex]

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