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Komok [63]
4 years ago
9

How would you solve 3x^2-12=0?

Mathematics
1 answer:
Gennadij [26K]4 years ago
3 0

                                                                                 3x^2 - 12  =  0

Personally, I would divide each side by 3                x^2 - 4  =  0

Then I would add 4 to each side                              x^2        =  4

Then I would take the square root of each side:     x  =  +4
                                                                                     x  =  -4 .

Having found both solutions, I would relax with a cup of tea.

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frez [133]

Given:

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A=23\times 3\times 5

B=22\times 3\times 52

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Solution:

We have,

A=23\times 3\times 5               ...(i)

B=22\times 3\times 52

All the factors of A are prime but the factors of B are not prime. So, it can be written as

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From (i) and (ii), it is clear that 3 is the only common factor of A and B. So,

HCF(A,B) = 3

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