Class VII

If m = 1, n = -1 and p = 2, then the value of expression m2 + n2 + p2 is
  1. 0
  2. 1
  3. 3
  4. 6
Which of the following is like term as 7 x2y2?
  1. 7 y²
  2. 7x
  3. 7y
  4. 13 x²y²
The length of a side of a square is 2x + 3, then the expression represents the perimeter of the square is
  1. 2x + 16
  2. 6x + 9
  3. 8x + 3
  4. 8x + 12
Expressions consists of _____________ and _______________.
  1. Expressions
  2. Identities
  3. Variables , constants
  4. None of these
The value of 3x2 - 5x + 3 when x = 1 is
  1. 1
  2. 0
  3. -1
  4. 11
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