KareenaJ
KareenaJ KareenaJ
  • 22-04-2019
  • Mathematics
contestada

Select the two values of x that are roots of the given polynomial below. 2x^2 + 7x + 6

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 22-04-2019

Answer:

The two roots are;

[tex]x=-2,x=-\frac{3}{2}[/tex]

Step-by-step explanation:

The given polynomial is;

[tex]2x^2+7x+6[/tex]

To find the roots of this polynomial; we set the function to zero

[tex]2x^2+7x+6=0[/tex]

We split the middle term to obtain;

[tex]2x^2+4x+3x+6=0[/tex]

Factor by grouping;

[tex]2x(x+2)+3(x+2)=0[/tex]

[tex](x+2)(2x+3)=0[/tex]

Use the zero product property;

[tex](x+2)=0,(2x+3)=0[/tex]

The two roots are;

[tex]x=-2,x=-\frac{3}{2}[/tex]

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