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elena55 [62]
3 years ago
14

Factor 6x4 - 5x2 + 12x2 – 10 by grouping. What is the resulting expression? O (6x + 5)(x2 - 2) O (6x - 5)(x2 + 2) (6x2 + 5)(x -

2) (6x2 - 5)(x2 + 2) ​
Mathematics
2 answers:
Shtirlitz [24]3 years ago
8 0

Answer:

6x4 - 5x2 + 12x2 – 10 simplified is =6x^4+7x^2−10

6x4 - 5x2 + 12x2 – 10  factored is =(6x2−5)(x2+2)

Step-by-step explanation:

brainliest please?

Mila [183]3 years ago
6 0

Answer:

(6x^{2} - 5)(x^{2} +2)

Step-by-step explanation:

Always arrange in descending powers first.  In this case that is already done.

Try grouping the first two terms and the last two terms first

(6x^{4} - 5x^{2} ) + (12x^{2}  - 10)   Factor out the GCF of both groups

x^{2} (6x^{2}  - 5) + 2(6x^{2} - 5)\\     Note that 6x^{2} - 5 is a factor in each group. That's    

                                           good

Now treat 6x^{2} - 5 as a GCF and you get

(6x^{2} - 5)(x^{2} +2)

Since  6x^{2} - 5  and  x^{2} +2  are both prime, we are finished.  

You can check to see if you are correct by FOILing the answer you got.  OK?

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22. A question bank has questions of Physics and
trasher [3.6K]

Step-by-step explanation:

Let the number of books of Physics be x . Then , No. of chemistry books =3.5x

Now , according to question :

x+3.5x=90

Or , 4.5x=90

Or , x=90/4.5

Or , x=20

Now ,

3.5x= 3.5×20

= 70

Therefore , there were 70 chemistry books and 20 physics books in that question bank.

7 0
2 years ago
There are a total of 63 bikes if the ratio of blue bikes and black bikes is 45 how many are blue?
maw [93]
18 blue bikes. 63 - 45 = 18
3 0
3 years ago
HELP HELP 100 POINTS!! Paola was given the equation y= -x + 3. Which of following is an equivalent representation of the equatio
cluponka [151]

Answer:

To answer this question, there needs to be choices provided since the description you provided states "which of the following".

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
What is the product of -2x^3 + x -5 and x^3 – 3x?
lana66690 [7]
(-2x^3 +x -5) * (x^3 -3x)
= x^6*(-2*1) +x^4*(-2*-3 +1*1) +x^3*(-5) +x^2*(-3) +x(-5*-3)
= -2x^6 +7x^4 -5x^3 -3x^2 +15x
8 0
3 years ago
What's the sum of an infinite geometric series if the first term is 156 and the common ratio is 2∕3?
DENIUS [597]

Answer:

468

Step-by-step explanation:

Formula for infinite sum of geometric series is;

S_∞ = a1/(1 - r)

Where;

a1 is first term

r is common ratio

We are given;

a1 = 156

r = ⅔

Thus;

S_∞ = 156/(1 - ⅔)

S_∞ = 156/(⅓)

S_∞ = 468

4 0
3 years ago
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