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Kryger [21]
3 years ago
12

(2x² - 5x + 12) + (x² + 72 – 8)​

Mathematics
1 answer:
ratelena [41]3 years ago
6 0

Answer:

3x squared - 5x+76

Step-by-step explanation:

2x^2+x^2=3x^2

-5x

12+72-8=76

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Step-by-step explanation:

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A survey of 2541 American households discovered<br> that 64% of the households own one car.
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6 0
3 years ago
PLEASE HELP ASAP!!!!!
sveta [45]
Accute hope this helps
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Find all values of k for which the equation 3x^2−4x+k=0 has no solutions.
dusya [7]

The given equation has no solution when K is any real number  and k>12

We have given that

3x^2−4x+k=0

△=b^2−4ac=k^2−4(3)(12)=k^2−144.

<h3>What is the condition for a solution?</h3>

If Δ=0, it has 1 real solution,

Δ<0 it has no real solution,

Δ>0 it has 2 real solutions.

We get,

Δ=k^2−144 here Δ is not zero.

It is either >0 or <0

Δ<0 it has no real solution,

Therefore the given equation has no solution when K is any real number.

To learn more about the solution visit:

brainly.com/question/1397278

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Step-by-step explanation:

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