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leonid [27]
4 years ago
8

Which expressions are differences of squares?

Mathematics
1 answer:
pashok25 [27]4 years ago
4 0

Answer:

  • t^2 - 1
  • n^2 - 225

Step-by-step explanation:

For an expression to be a difference of squares, it must be a difference of two terms, each of which is a square. A term is a square if its coefficient is a square and if its degree is even.

The third expression is a sum, not a difference; the fourth expression has a term that is not a square (40). Neither of those is a difference of squares.

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meriva
M = 32/0.8 m = 320/8 m = 40 Rule: You see in my second step? You have to get rid of the decimal to make it a whole number. So keep on adding 0 to the 32 until you transform 0.8 to a whole number. Ionly added 0 once to 32 because I only have to move the decimal once to make 0.8 a whole number. Hi
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Eight less than 3 times a number is equal to -3 plus twice the number.
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3 years ago
A(1) = -11<br> a(n) = a(n − 1). 10<br> What is the 4th term in the sequence?
neonofarm [45]

Answer:

a(n)= a(n-1) .10

Clearly see the equation

you can do it directly Apply logic

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