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marissa [1.9K]
2 years ago
7

Find the solution set. 7x^2-5x-2=0

Mathematics
1 answer:
GenaCL600 [577]2 years ago
7 0

Answer:

x

=

 

−

b

±

√

b

2

−

4

a

c

2

a

, we get that

x

=

−

2

,

0.6

Explanation:

Rearrange the equation so that it becomes:

5

x

2

+

7

x

−

6

=

0

The quadratic formula is:

x

=

−

b

±

√

b

2

−

4

a

c

2

a

In our equation above,

a

=

5

b

=

7

c

=

−

6

Plugging these values into the quadratic equation gives:

x

=

−

7

±

√

7

2

−

4

(

5

)

(

−

6

)

2

(

5

)

x

=

−

7

±

√

49

+

120

10

x

=

−

7

±

√

169

10

x

=

−

7

±

13

10

x

=

−

2

,

0.6

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Answer:

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Step-by-step explanation:

First, subtract by 7 both sides of equation.

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Solve.

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Then, divide by 12 both sides of equation.

\displaystyle \frac{12p}{12}=\frac{132}{12}

Solve to find the answer.

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