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nydimaria [60]
2 years ago
6

What are the factors of 2x2 3x – 54? Select two options. 2x – 9 2x – 6 2x 6 x – 6 x 6.

Mathematics
1 answer:
Makovka662 [10]2 years ago
4 0

The factors of expression 2x^{2} +3x-54 are (x+6) and (2x-9).

The given expression is: 2x^{2} +3x-54

<h3>What is a factor?</h3>

A factor is a number that divides another number leaving no remainder.

We can rewrite the given expression as:

2x^{2} +12x-9x-54 (middle term has been splitted)

Take 2 as common from first two terms while take -9 as common from last two terms.

2x(x+6)-9(x+6)

Take (x+6) as common

(x+6) (2x-9)

So, we got the factors (x+6) and (2x-9)

Therefore, The factors of expression 2x^{2} +3x-54 are (x+6) and (2x-9).

To get more about factors visit:

brainly.com/question/25829061

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Divid 15 into two parts such that the sum of their reciprocal is 3/10
emmasim [6.3K]
Let x and y be the 2 parts of 15 ==> x + y=15 (given)

Reciprocal of x and y ==> 1/x +1/y ==> 1/x + 1/y = 3/10 (given)


Let's solve  1/x + 1/y = 3/10 . Common denominator = 10.x.y (reduce to same denominator)

 ==> (10y+10x)/10xy = 3xy/10xy ==> 10x+10y =3xy

But x+y = 15 , then 10x+10y =150 ==> 150=3xy and xy = 50

Now we have the sum S of the 2 parts that is S = 15 and 
their Product = xy =50
Let's use the quadratic equation for S and P==> X² -SX +P =0
Or X² - 15X + 50=0, Solve for X & you will find:
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3 years ago
A salesman bought 2 dozen television sets at $300 each. He sold two-thirds of them at
Kipish [7]
Well, the first 16 were about 16*75=$1200 extra. The last 8 were $720 lost. Thus, the total profit is $480. He bought them with $7200, which means the profit is around 6.67%.
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irga5000 [103]
Is this question asking for descriptions?
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3 years ago
Three lights all go on one changes every 5 sec one every 6 sec one every 8 sec when will they all go on together
inysia [295]
In order to calculate, you need to find their LCM
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So, That time will be 120 sec = 2 min.
In short, Your Final Answer would be 2 min.

Hope this helps!
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