Class IX

(x + y)² + (x - y)² is equals to
  1. 2xy
  2. 3xy
  3. 4xy
  4. none of these
A polynomial of one term is called
  1. binomial
  2. monomial
  3. trinomial
  4. none of these
The zero of the polynomial (x−3)2 - (x + 3)2 is
  1. -2
  2. 2
  3. 1
  4. 0
-3 is a zero of the polynomial
  1. 3x² + 6
  2. 3x² + 6x
  3. 3x² + 9x
  4. 3x² - 9x
The coefficient of x in the polynomial x² + 5x - 3 is
  1. -2
  2. -3
  3. 5
  4. -5
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