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NECO 2024 · Paper 1 · Q32

Expand (2x−3)(3x+4)(2x - 3)(3x + 4).

Worked solution (try it first)
  1. Multiply each term in the first bracket by each in the second: 6x2+8x−9x−126x^2 + 8x - 9x - 12.
  2. Collect the xx terms: 8x−9x=−x8x - 9x = -x.
  3. So (2x−3)(3x+4)=6x2−x−12(2x - 3)(3x + 4) = 6x^2 - x - 12, option B.

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