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Mkey [24]
3 years ago
5

Explain the error in the following factorization. (20 Points)

Mathematics
1 answer:
juin [17]3 years ago
6 0

Answer:

It would not be x^2 -9^2. It would be x^2-9. That way you can facto it to make (x+3) and (x-3)

Step-by-step explanation:

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Negative one times the sum of twice a number and 3 is equal to 2 times the
den301095 [7]
Lets just say the number is equal to x.
-1(2x+3)=2*(-4x-3)
Distribute on both sides
-2x-3=-8x-6
Add 3 to both sides
-2x=-8x-6
Add 8x to boths sides
6x=-6
Divide Both Sides by -1
x=-1
The numbers is -1.

3 0
3 years ago
Solve for w.<br> 2w=12-4w<br> Simplify your answer as much as possible.
aev [14]
So we have an equation:
2w=12-4w
Firstly, let's simplify, and divide all terms by 2:
w=6-2w
Now, we add 2w over to the other side:
3w=6
And finally, we divide both sides by 3:
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Hope this helps!
6 0
4 years ago
A model of a skyscraper is 1.6 in long, 2.8 in wide, and 11.2 in high. The scale factor is 8 in : 250 ft. What are the actual di
____ [38]
<span>At 8in to 250 feet the skyscraper converts to the following. 1.6 in/8 in x 250ft = 50 ft long 2.8in/8in x 250ft = 87.5 ft wide 11.2in/8in x 250ft = 350 ft high You get this because every 8 in is 250 feet so you need to calculate the ratio of scale to that 8in per 250 feet.</span>
3 0
4 years ago
If I multiply a number L by another number M, I get 452,199. If I multiply L by the successor of M, I get 454,322. Find L x L.
Genrish500 [490]

Step-by-step explanation:

L * M = 452,199

L * (M + 1) = 454,322

Therefore L * (M + 1) = L * M + L.

=> 454,322 = 452,199 + L, L = 2,123.

Hence L² = 2,123² = 4,507,129.

8 0
3 years ago
7. Point D is reflected across the x-axis. What are the coordinates of its image?
Talja [164]
The answer would be (3,1)
4 0
3 years ago
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