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alex41 [277]
3 years ago
8

Solve the quadratic equation: 5x²-2x-25=0​

Mathematics
1 answer:
NARA [144]3 years ago
4 0
Here’s the solution
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Divide 36x^3-96x^2+48x by 12x
sergij07 [2.7K]

Answer:

3x^2  - 8x + 4.

Step-by-step explanation:

36x^3 - 96x^2 + 48x

Dividing by 12  term by term:

= 3x^2  - 8x + 4.

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Which number is a rational number?
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Answer:

C

Step-by-step explanation:

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Rest all are irrational

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Elect from the drop-down menus to correctly complete the statement.
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Answer:

568.32 x 104 = 59105.28

Step-by-step explanation:

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2 years ago
A
IrinaK [193]

Answer:

98 cm²

Step-by-step explanation:

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2 years ago
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Amber, Bernie, and Carlos are working on a problem together. Their goal is to correctly apply the difference of cubes formula to
NeX [460]

Answer: Carlos is correct

Step-by-step explanation:

2x^5-250x^2

The first step is to factorize out 2x^2

2x^2(x^3-125)

This can be rewritten as

2x^2(x^3-5^3),

Recall, difference if cube (a^3-b^3)

= (a-b)(a^2 +ab + b^2)

from our equation,

a= x

b = 5.

So the difference of cubes will be

2x^2[(x-5) (x^2 + 5x + 5^2)]

=2x^2[(x-5) (x^2 + 5x + 25)]

Carlos followed these steps. So he is correct. Carlos is correct because he correctly factored the GCF, identified a and b, and applied the difference of cubes method.

Amber is incorrect because 125 is equal to b3, not b.

Bernie is incorrect because x2 is not the GCF of the polynomial. The GCF is 2x^2.

6 0
3 years ago
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