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erica [24]
3 years ago
14

24 minus 16 in a fraction

Mathematics
1 answer:
Nonamiya [84]3 years ago
7 0
Is this supposed to be just like 24/1 -16/1 because any whole number is over 1.  Then they already have a common denominator so you just subtract across.  24-16 =7/1 or 7
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Explain why please and make sure it is in full detail
Marysya12 [62]

Step-by-step explanation:

well,

(y - 7)² = (y - 7)(y - 7)

remember how to multiply 2 expressions ?

you have to multiply every term of one expression with every term of the other expression and sum the results all up (incl. considering their individual signs, of course).

so, when we do the multiplication, we get

(y - 7)(y - 7) = y×y - 7×y - 7×y + (-7)×(-7) =

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and that is clearly different to y² - 49

FYI

y² - 49 is the result of

(y - 7)(y + 7)

because

y×y + 7×y - 7×y + (-7)(7) = y² - 49

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