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emmainna [20.7K]
3 years ago
6

Is x^2 - 16 a perfect square? Why?

Mathematics
2 answers:
Valentin [98]3 years ago
4 0

Answer:

yes

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula,  a ^2 − b^2  =( a + b ) ( a − b ) where  a = x  and  b = 4 . ( x + 4 ) ( x − 4 )

hopes this helps

harina [27]3 years ago
3 0

Answer:

no, if you plug in 1 for x, you get 1-16=-15 which is not a perfect square

Step-by-step explanation:

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We can't get two consecutive integers to add up to an even number, as two consecutive integers will always be an odd number and an even number will always add up to an odd number, which 132 is not.

You can of course get two numbers that are 1 apart, and those would be 65.5 and 66.5, but those are not integers.

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