mathematics #2

• Quantity 2x minus 5y squared

  1. Square the first term (4x^2)

  2. Multiply the first term and add the second term (-20xy)

  3. Square the second term (25y^2)
• Quantity 7x plus 2y minus 3y squared

  1. Square the first term (49x^2)

  2. Square the second term (4y^2)

  3. Square the third term (9y^2)

  4. Multiply the first term and the second term (28xy)

  5. Multiply the second term and the third term (-12y^2)

  6. Multiply the first term and the last term (-42x)
• Quantity 11m minus 3n times quantity 11m plus 3m


  Difference of the squares (121m^2 - 9n^2)
• Cube of a binomial

  1. Cube the first term (64d^3)

  2. Square the first term and multiply by the second term (-32d^2e)

  3. Square the second term (48de^2)

  4. Cube the second term (-8e^3)
• Product of the sum and difference of two cubes

  1. Cube the first term (8m^3)

  2. Cube the second term (27n^3)
• To master these special products, you need to solve more exercises and practice