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Aleks [24]
3 years ago
7

Solve equation by using the quadratic formula. 6x^2 +2x =4?

Mathematics
2 answers:
zhenek [66]3 years ago
7 0

Answer:

B) x =( 2/3, -1)

Step-by-step explanation:

Equation:

6x {}^{2}  + 2x = 4

Solution:

We know that,

\rm \: Quadratic \:  formula (x)=\cfrac{-b\pm\sqrt{b^2-4ac}}{2a}

According to the problem,

  • a = 6
  • b = 2
  • c = -4

Plugging them on the formulae,we obtain,

  • x =  \cfrac{  - 2 \pm \sqrt{ 2 {}^{2} - 4 \{6 \times ( - 4) \} } }{2 \times 6}

  • x =  \cfrac{ - 2 \pm \: \sqrt{4 - 4 \{ - 24 \} } }{12}

  • x =  \cfrac{ - 2 \pm \:  10 }{12}

  • x =  \cfrac{ - 1 \pm5}{6}

  • \boxed{x =  \cfrac{2}{3}  \:  \rm or - 1}

Choice B is accurate.

fenix001 [56]3 years ago
3 0

Answer:

Answer x=2/3, -1
Option B

Step-by-step explanation:

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