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Maksim231197 [3]
3 years ago
8

(x-1)(x-3)(x+5)(x+7)=297

Mathematics
2 answers:
Assoli18 [71]3 years ago
7 0

Answer:

x=4

Step-by-step explanation:

(4-1)(4-3)(4+5)(4+7)=297

mihalych1998 [28]3 years ago
5 0

First simplify the expression into polynomial form,

(x-1)(x-3)(x+5)(x+7)=297

x^4+8x^3-10x^2-104x+105=297

x^4+8x^3-10x^2-104x-192=0

Now factor into,

(x-4)(x+8)(x^2+4x+6)=0

Which means the solutions are,

x-4=0\implies\boxed{x_1=4}

x+8=0\implies\boxed{x_2=-8}

and then two complex solutions because determinant of the third factor D\lt0,

x^2+4x+6=0

x^2+4x+4=-2

(x+2)^2=-2\implies\boxed{x_3=i\sqrt{2}-2},\boxed{x_4=-i\sqrt{2}-2}

Hope this helps :)

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Help with this math question... Leslie created a rectangle on the coordinate plane. Three of the vertices are (5,-2), (5,2), (2,
Aloiza [94]
Draw the points on a graph, you will have three points and need to add the fourth to make the corners of a rectangle. After you have found the point on the missing corner of the rectangle see what its x and y coordinates are.


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7 0
3 years ago
tarik starts a morning walk at 7:00 am. his distance, in miles, to the nearby grocery store after x hours is f(x)
Grace [21]

Total distance walked by Tarik is 0.75 miles according to the given equation.

What is equation?

In arithmetic, an equation could be a formula that expresses the equality of 2 expressions, by connecting them with the sign =.

Main body:

Given that

The expression that represents the Tarik's distance is

=>  f(x) = 3∣x−0.5∣

And also given that at 7.15 am he is some distance away from the store

Let Tarik is 'a' miles away from the store at 7.15 am

The time taken to walk 'a' miles = 7.15 - 7.00 = 15 minutes

As we know 60 minutes = 1 hr

=> 15 minutes = 15/60 = 0.25 hrs  

The given expression to find the Distance is

f(x) = 3 ∣x − 0.5∣    where x is number of hours

At x = 0.25

f(0.25) = 3 |0.25 - 0.5|

= 3 |- 0.25|

= 0.75 miles

Therefore,Tarik is 0.75 miles away from the store.

To know more about equation , visit:

brainly.com/question/22688504

#SPJ4

8 0
1 year ago
HELPPPPPPPPP please fast
gtnhenbr [62]

Answer:

B. 1

Step-by-step explanation:

I used a calculator

5 0
3 years ago
Read 2 more answers
Will give brainlist if correct!
Sveta_85 [38]

Answer:

A y=5

Step-by-step explanation:

5 0
3 years ago
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