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elena-s [515]
3 years ago
14

19. 2x²+5√3 x+6 = 0​

Mathematics
1 answer:
Mama L [17]3 years ago
7 0

Answer:

Step-by-step explanation:

2x²+5√3 x+6 = 0​

Comparing this with quadratic equation ax^2+bx+c=0

So a=2,b=5√3,c=6

Discriminant D=b^2-4ac

D=(5√3)^2-4.2.6

= 75-48

=27.

27 >0

Hence the roots are real roots

X=(-b+√D)/2a, Y=(-b-√D)/2a

X=(-5√3+√27)/2×2, Y=(-5√3-√27)/2×2

X=(-5√3+3√3)/4,. Y=(-5√3-3√3) /4

X=-2√3/4,. Y=-8√3/4

X=-√3/2, Y =-2√3

So roots are X=-√3/2,Y=-2√3

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Help.....................
eduard

Answer:

Answers in Explanation

Step-by-step explanation:

First Question:

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\sqrt{100} + [24 - 15]  - (60 - 49 - 1)

\sqrt{100} + 9 - 10

10 + 9 - 10

<u>Answer = 9</u>

Second Question:

5x + 2x = 7x

5x^2 + 3x^2 = 8x^2

2x + 3x - x = 4x

2x + 3y + x + y = 3x + 4y

9x - 6x = 3x

-7y + 3x + 4x + 3y = 7x - 4y

-7x^2 + 2x^2 + 9x^2 = 8x^2

(3x^2 + 5x + 4) - (-1 + x^2) = 2x^2 + 5x + 5

(3 + 2x - x^2) + (x^2 + 8x + 5) = 10x + 8

(3x - 4) - (5x + 2) = -2x - 6

(2x^2 + 5x + 3) - (x^2 - 2x + 3) = x^2 + 7x

(3x^2 + 2x - 5) - (2x^2 - x - 4) = x^2 + 3x - 1

Third Question:

17x + 2y

(5x + 12y) + (3x + y) = 8x + 13y

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7 0
3 years ago
What is the least number which is exactly divisible by 76 and 57
lesantik [10]

Answer:

228

Step-by-step explanation:

Your phrasing is a little bit confusing but I'll assume that you're looking for the Least Common Multiple.

4 0
3 years ago
A carton measures 200 cm by 100 cm by 100 cm.
Delvig [45]

Answer:

the answer is below

Step-by-step explanation:

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4 0
3 years ago
-8p^4+12p^3+4p^4-8p^2+3p^2
Umnica [9.8K]

Answer:

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=p^2(-4p^2+12p-5)

note: If you have to solve for X

there are steps according to formula

3 0
3 years ago
What is the surface area of the outside of a cube shaped closed-top water tank whose edge length is 7.2 ft? A.373.25 B.311.04 C.
sertanlavr [38]
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In short, Your Answer would be Option B

Hope this helps!
3 0
4 years ago
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