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vaieri [72.5K]
3 years ago
6

Find the number of​ real-number solutions of the equation below. x2+7x−5=0

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
8 0

Answer:

x

=

−

7

−

√

69

2

,

−

7

+

√

69

2

Step-by-step explanation:

x

=

−

7

−

√

69

2

,

−

7

+

√

69

2

FinnZ [79.3K]3 years ago
4 0

Answer:

12

Step-by-step explanation:

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Answer:

i belive its 75 percent

Step-by-step explanation:

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Two collinear points are given in the table. Give a third point that is also on this line
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multiply as a fraction <3

Step-by-step explanation:

7 0
2 years ago
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What is the completely factored form of x4 8x2 – 9?
Alinara [238K]

For this case we have the following polynomial:

x ^ 4 + 8x ^ 2 - 9

We make the following change of variables:

u = x ^ 2

Rewriting we have

u ^ 2 + 8u - 9

Factoring the second order polynomial we have:

(u + 9) (u-1)

Then, returning the change we have:

(x ^ 2 + 9) (x ^ 2-1)

Finally, we factor the expression in the parentheses of the second term:

(x ^ 2 + 9) (x + 1) (x-1)

Answer:

the completely factored form is:

(x ^ 2 + 9) (x + 1) (x-1)

7 0
3 years ago
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A round table has 4 legs and a rectangular table has 6 legs. If 10 tables have a total of 52 legs, how many of the legs belong t
ivolga24 [154]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
ANSWER FAST MY DUDEZ!<br> What is the value of x in the equation <br> 1.8- 3.7x = 4.2x + 0.3
Inessa [10]

1.8- 3.7x = 4.2x + 0.3

Move 4.2x to the other side

Sign changes from +4.2x to -4.2x

1.8-3.7x-4.2x= 4.2x-4.2x+0.3

1.8-3.7x-4.2x= 0.3

1.8-7.9x= 0.3

Move 1.8 to the other side

Sign changes from +1.8 to -1.8

1.8-1.8-7.9x= 0.3-1.8

-7.9x= 0.3-1.8

-7.9x= -1.5

divide both sides by -7.9

-7.9/-7.9x= -1.5/-7.9

x= 0.18987341

Answer: x= 0.18987341

8 0
4 years ago
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