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Arturiano [62]
3 years ago
10

Show all work to factor x4-5x2+4

Mathematics
1 answer:
dezoksy [38]3 years ago
6 0

Answer:

x = 1 or -1  

x = -2 or 2

Step-by-step explanation:

x4 - 5x2 + 4 = 0

x4 - 4 x2 - x2 + 4 =0

x2 ( x2 - 4 ) - 1 ( x2 - 4 ) = 0

( x2 - 1 ) ( x2 - 4 ) =

x2 - 1 = 0         or          x2 - 4 = 0

x2 = 1                            x2 = 4

x = 1 or -1                              x = -2 or 2

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Suman monthly income rs 25000 he spend 1/5 of his income for house rent and 3/5 of his income an.other exp enditure how much did
goldenfox [79]

Answer:

₹ 5000

Step-by-step explanation:

Income= ₹ 25000

House rent = 1/5 of 25000

                  = \frac{1}{5}*25000

                 = ₹ 5000

Other expenditure = 3/5 of 25000

                              = \frac{3}{5}*25000

                              = 3 * 5000

                              = ₹ 15000

Savings = 25000 - ( 5000 + 15000)

              = 25000 - 20000

              = ₹ 5000

5 0
3 years ago
Read 2 more answers
A store offers packing and mailing services to customers. The cost of shipping a box is a combination of a flat
Ierofanga [76]

Answer:

5 + 52.25x

Step-by-step explanation:

flat rate plus cost per pound times number of pounds

5 + 52.25x

4 0
3 years ago
Rewrite the function f(x)=4(x-2)²-8 in the form f(x)=ax²+bx+c.
tino4ka555 [31]

Answer:

4x^{2}-16x+8

Step-by-step explanation:

4(x - 2)(x - 2) - 8 = 4(x^{2} - 4x + 4) - 8 = 4x^{2} - 16x + 16 - 8 = 4x^{2} - 16x + 8.

8 0
3 years ago
Read 2 more answers
Select the equation of the line that passes through the .5,7 and is perpendicular to the line x equals 4
lions [1.4K]
Hello!

To be perpendicular to x = 4, the line must be y = something. This eliminates answer choices #2 and #4. Also, to pass through the point (.5, 7), the line must be y = 7.

So answer choice #3.

Hope this helps!! Let me know if you have ANY questions.
8 0
3 years ago
Can you construct a triangle that has side lengths 2 yd, 9 yd, and 10 yd?
yan [13]

Yes


The rule to check if a triplet of numbers can represent the sides of a triangle is the following: the sum of the length of two sides must exceed the third one.


This happens for all possible couples in your case:


2+9=11>10


2+10=12>9


9+10=19>2

3 0
3 years ago
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