Matematika

Pertanyaan

(a+b)kuadrat-(c+d)kuadrat=

2 Jawaban

  • (a+b)² - (c-d)² = ((a+b)+(c+d))((a+b)-(c+d))
                           = (a+b+c+d)(a+b-c-d)
  • (a + b)² - (c + d)²
    = a² + 2ab + b² - (c² + 2cd + d²)
    = a² + 2ab + b² - c² - 2cd - d²

Pertanyaan Lainnya