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kvasek [131]
3 years ago
5

Does anyone know what that number would be?

Mathematics
2 answers:
Aleks [24]3 years ago
5 0

Answer:

49

Step-by-step explanation:

What two numbers add to the middle term and multiply to the last term? 49 doesnt fit in to 14 at all so we know that one of the factors is 7. since the middle term is -14, you would add -7 to -7 to get that. so we know the factors of the middle term are -7 and -7, so all you have to do is multiply them together. It would be positive 49.

motikmotik3 years ago
3 0

Step-by-step explanation:

The new c term be 49 for completing the square.

x² - 14x + 49

= x² - 2 * x * 7 + 7²

= ( x - 7) ²

Hope it will help :)

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