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what are the factors of 2x2+7x+3=0​

Sagot :

ANSWER

[tex] \\ [/tex]

[tex] \\ \large\texttt{GIVEN:} \sf{ 2x²+7x+3=0} \\ [/tex]

Remove 2 by multiplying to 3

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

Find the factor of 6 that will equal to 7 when adding the factors

[tex] \\ (x + 6)(x + 1) \\ [/tex]

Divide 2 to the constants

[tex] \\ (x + \frac{6}{2} )(x + \frac{1}{2} ) \\ [/tex]

Simplify

[tex] \\ (x + 3)(x + \frac{1}{2} ) \\ [/tex]

Multiply the denominator to x

[tex] \\ (x + 3)(2x + 1) \\ [/tex]

[tex] \\ \\ [/tex]

[tex] \\ \large \bold{ROOTS} \\ [/tex]

[tex] \\ x + 3 = 0 \\ [/tex]

Transfer 3 to the right side then change ita integer sign

[tex] \\ \boxed{x = - 3} \\ \\ [/tex]

[tex] \\ 2x + 1 = 0 \\ [/tex]

Transfer 1 then change its integer sign

[tex] \\ 2x = - 1 \\ [/tex]

Divide 2 to both sides

[tex] \\ \frac{2x}{2} = \frac{ - 1}{2} \\ [/tex]

Cancel both 2 from the left side

[tex] \\ \frac{ \cancel{2}x}{ \cancel{2}} = \frac{ - 1}{2} \\ [/tex]

[tex] \\ \boxed{x = \frac{ - 1}{2} }\\ [/tex]

[tex] \\ \\ \\ [/tex]

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