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kakasveta [241]
2 years ago
13

Polynomial factoring: 2x^4 + x^2- 6

Mathematics
1 answer:
pickupchik [31]2 years ago
7 0

Answer: (x^2+2)(2x^2-3)

Step-by-step explanation:

2x^4 + x^2- 6

= 2x^4+4x^2-3x^2-6

= 2x^2(x^2+2)-3(x^2+2)

= (x^2+2)(2x^2-3)

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Breanna works in the mall and her hours increase during busy shopping times of the year. Breanna has a plan to save $25 each wee
vesna_86 [32]
The math I used is probably not the quickest way, but for me, the easiest.
25*5=125  25+20=45  45*7=315  125+315=440  25*4=100  440+100=540  5+7+4=16
B is your answer.
5 0
3 years ago
Read 2 more answers
Caitlin makes candles and sells them in her online shop. Tall candles cost $8 each and short candles cost $5 each. last month, s
snow_tiger [21]

Answer:

tall candles = 39

Short candles = 52

Step-by-step explanation:

let tall candles be x

and short candles be y

No. Of candles sold = x + y =91

Money made from candles will be equal to = 8x + 5y = $572

These both are simultaneous linear equations.

x + y =91 ( multiply by 5)

5x + 5y = 455

8x + 5y = $572

Subtract them:

-3x = -117

x = -117/3

x = 39

put value of x in

x + y = 91

39 + y = 91

y = 91 - 39

y = 52

x shows tall candles so they are 39

y shows short candles so they are 52

3 0
2 years ago
AC=CE and D is the midpoint of CE. If CE = 10x+18 DE = 7x-1 and BC = 9x-3 find AB
Mazyrski [523]

We know the CE = 10x + 18 and DE = 7x - 1 and D is the midpoint of CE

⇒ CE = 2 * DE

⇒ 10x + 18 = 2 * (7x - 1)

⇒ 10x + 18 = 14x - 2

⇒ -4x = -20

⇒ x = 5

Now we also know that BC = 9x - 3 and AC = CE = 10x + 18

⇒ AB = AC - BC

⇒ AB = 10x + 18 - (9x - 3)

⇒ AB = x + 21

Substituting the value of x,

⇒ AB = 5 + 21

⇒ AB = 26

Hence, the value of AB is 26 units.


8 0
3 years ago
Amanda has $5200 in a savings account that earns 4% annually. If the interest is not compounded, what is the value of her accoun
iren2701 [21]
The interest is simple
A=5,200×(1+0.04×5)
A=6,240
4 0
3 years ago
Read 2 more answers
HELP PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS PLSS I BEFFF
xenn [34]
6:$9
Multiply both by 2 (because 12/6=2)
And get 12:$18

3:7
Multiply both by 2 (because 14/7=2)
And get 6:14

6:3
Multiply both by 8 (48/6=8)
And get 48:24

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6 0
2 years ago
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