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katovenus [111]
3 years ago
15

Simplify (25x^2-14xy+4)-(7x^2-9y)+(2xy+7)

Mathematics
1 answer:
givi [52]3 years ago
5 0
First distribute the negative to the second equation which would give you:

25x^2 - 14xy + 4 -7x^2 + 9y + 2xy + 7

Since addition is commutative. you can now just add like terms.

18x^2 - 12xy + 9y + 11
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Which are equal to 3/2?
KIM [24]
Explanation:

Starting with the first option, the square root of 12 and 8 isn’t a perfect square so it definitely can’t be reduced to 3/2.

It is the same for the second option as well.

Third option :
Root of 36 is 6
Root of 16 is 4

6/4 = 3/2

Fourth option:
Root of 81 is 9
Root of 36 is 6

9/6 = 3/2

Answer:

Therefore, the third and fourth options are the correct choices.

Hope this helped!
6 0
3 years ago
How do you write 0.04×10 to the 5th power in standard form?
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3 years ago
Your friend takes a job cleaning up a neighbors yard and mowing the grass, and asks you and two other friends to help. Your frie
nadezda [96]

Answer:

$100

Step-by-step explanation:

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Add

Friend + You + Two other friends= 4

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3 0
3 years ago
For the following system, use the second equation to make a substitution for y in the first equation.
Tju [1.3M]
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3 0
3 years ago
Given the function f(x) = 6x2 + 3<br> Find f(-2)<br> -22<br> 27<br> 9<br> 15
Andrews [41]

Answer:

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Out of those numbers and assuming the equation is f(x) = 6x^2=3

f(-2)= 6(-2)^2+3

8 0
3 years ago
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