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WITCHER [35]
4 years ago
14

Factor 6x4 – 5x2 + 12x2 – 10 by grouping. What is the resulting expression?

Mathematics
1 answer:
Tpy6a [65]4 years ago
8 0
Hi, let's there!

6x^4 -5x^2 + 12x^2 -10

Rewriting this equation as:

6x^4 + 12x^2 -5x^2 - 10

Now putting 6x^2 as commun factor

6x^2.( x^2 +2) -5x^2-10

Now putting -5 as commun factor

6x^2.( x^2 + 2) -5.( x^2 +2)

Now putting (x^2+2) as commun factor

(x^2 + 2).( 6x^2 +2)

Now putting 2 as commun factor on the expression 6x^2 +2

6x^2+2 = 2.( 3x^2 +1)

Then stay:

2.( x^2 +2).( 3x^2 +1)
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a farmer sold 2/5 of his cows and another 10th was stolen he then gave 20% of the cows that was left what percentage of the cows
igor_vitrenko [27]

Answer:

4/5 of the cattle is left

Step-by-step explanation:

Given,

A farmer sells 2/5 of his cattle

Let "x" be the total number of cattle

Then,

sold = 2 / 5 x

Then,

Remaining = x - 2x / 5

remaining = 3x / 5

He gives 1/3 of the remainder to his son

son = 1 / 3 × 3x / 5

son = x / 5

Then,

Remaining = 3x / 5 - x / 5

Remaining = 4x / 5

Hope this answer helps you :)

Have a great day

Mark brainliest

Thus 4/5 of the cattle is left

8 0
3 years ago
Prove that the sum of 3 consecutive numbers is always a multiple of 3
Bad White [126]

Proof:

3 consecutive integers are x, x+1 , x+2.

Add these values.

x+x+1+x+2

3x+3

3×(x+1)

3(x+1) is the multiple of 3 for any integer value of x.

7 0
4 years ago
Helppppppppp unicorn
labwork [276]

Answer:

1. True

2. false

3. true

4.false

5. true

6 = false

I have answered the options serial wise so plz give me a brainlist plzzzz vote me also so

3 0
3 years ago
Someone help me with this please
dmitriy555 [2]

Answer:

the answer is c=34

Step-by-step explanation:

use the pythogoras therom since there is a right angle triangle c2=a2+b2

hope this helped:)

8 0
2 years ago
Read 2 more answers
The concentration of a saline solution is given by the function <img src="https://tex.z-dn.net/?f=C%28x%29%3D%5Cfrac%7B0.2%7D%7B
katrin2010 [14]

Answer:

We have to add 1.86 L of water to make the solution 7% saline.

Step-by-step explanation:

The concentration of a saline solution is given by

                        C(x) = \frac{0.2}{1+x}

where x represents the amount of water used to dilute the solution.

We have to find how much water must be added to obtain a solution that is 7% saline.

If we see the equation we notice that as we add the value of x, the concentration of the solution decreases.

Here C(x) = 0.07

0.07 = \frac{0.2}{1+x}

Rearranging,

1 + x = \frac{0.2}{0.07}

1 + x = 2.86

x = 1.86 L

We have to add 1.86 L of water to make the solution 7% saline.

8 0
3 years ago
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