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polet [3.4K]
3 years ago
13

Simplify (x^3+5x^2+5x-2)+(x+2)

Mathematics
2 answers:
Nikitich [7]3 years ago
6 0
(x^{3}+5 x^{2} +6x)
It's just simple addition.

marishachu [46]3 years ago
5 0
(x³ + 5x² + 5x - 2) + (x + 2)
x³ + 5x² + 5x + x - 2 + 2
x³ + 5x² + 6x
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The school is selling potted plants as a fundraiser.Kara sold 12 ferns and 8 ivy plants for $260.Paul sold 15 ivy plants and 6 f
vovangra [49]

x=ferns ; y=ivy

12x+8y=260

6x+15y=240

x=60 -(15/6)y

12(60+ (15/6)y + 8y = 260

x=60 -(15/6)y

720 - 30y + 8y = 260

x=60- (15/6)y

-30y +8y= 260-720 ==> -22y= -460

x=60 -(15/6)y

y= (-460)/(-22)= 20.9090909091

y=20.90

x=60 -(15/6)×20.90= 7.75

×(ferns)=7.75$

y(ivy)=20.90$

8 0
3 years ago
Help with this pls pls
Simora [160]

Answer:

640

Step-by-step explanation:

first you have to do the 11-9 its gonna be 2 then you have to the cubic of 2 wich is 8 and after it you have to get 8 divided by 2 youre gonna get 4

after it you have to start from the left 320/4 equal to 80 than 80by 8 equal to 640

4 0
2 years ago
Mary had a number of cookies. after eating one, she gave half the remainer to her sister. after eating another cookie, she gave
Gemiola [76]
She originally started with 23. 

We can tell this by working the equation backwards. Since she has 5 left and she had just given half to her brother, we know she had 10 a moment ago. 

Before that, Mary had eaten a cookie. So we add 1 to the total and now have 11.

Before eating that cookie, she has given half to her sister, which would give her 22. 

And before giving half to her sister, she had eaten the first one, which would give us 23 to start with. 
8 0
3 years ago
Which is factor of the polynomial x2-12x+27
sweet [91]

Answer:

(x - 9)(x - 3)

Step-by-step explanation:

Step 1: Write out quadratic

x² - 12x + 27

Step 2: Factor

<em>What 2 numbers add up to -12 and multiply to 27?</em>

-9 and -3 add up to -12 and multiply to 27.

(x - 9)(x - 3)

5 0
3 years ago
-2/3÷(-1/2)=<br><br>6÷(-1/2)=<br><br>2/3÷2 1/2=
cricket20 [7]

1.) 4/3

2.) -12

3.)4/15

4 0
3 years ago
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