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vovikov84 [41]
3 years ago
15

-4x(2x^2-y) multiplying polynomials

Mathematics
1 answer:
andrezito [222]3 years ago
6 0

Answer:

-8x^3+4xy

Step-by-step explanation:

-4x·2x^2

Multiply the like terms

-8x^3

Two negatives equal a positive so

-4x(-y)

=+4xy

Therefor the answer is:

-8x^3+4xy

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Answer:

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3 years ago
What is the solution of \sqrt(2x+4)=16? <br> x = 6 <br> x = 72 <br> x = 126 <br> no solution
Genrish500 [490]
√(2x+4)=16  square both sides

2x+4=256  subtract 4 from both sides

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4 0
3 years ago
If one kg. of potatoes costs $4.99, what would 1.8 kg cost?
lina2011 [118]
You can use the proportion.
$4.99 / 1 kg = x / 1.8 kg
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 ☺️<span>✌️</span>
3 0
3 years ago
How do I make the equation in slope intercept form for No. 4?
dezoksy [38]

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y = mx + b

Without the m and b, which are the slope and y-intercept, you are left with x.

Then, you need to figure out whether the line is horizontal, or vertical.

If the line is vertical, you keep the x, and find out the value x is on for every point of y.

If the line is horizontal, you keep the y, and find out the value y is on for every point of x.

Since the line is vertical, we can use x = ?

The line is always at x=2, no matter what the y-value is, so the final equation would be x=2.

<em>I hope this helped you! :)</em>

7 0
2 years ago
Read 2 more answers
The sum is a prime number the sum is less than 4
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