Matematika

Pertanyaan

(2× + y)² + (× + 2y + 1)

TOLONG BANTU SAYA

2 Jawaban

  • (2x + y)² = 4x² + 2xy + 2xy + y²
    = 4x² + 4xy + y² + x + 2y + 1
    = 4x² + x + 4xy + 2y + y² + 1
  • (2x + y)² + (x + 2y + 1)
    = (2x)² + 2(2x)(y) + (y)² + x + y + 1
    = 2x² + 4xy + y² + x + y + 1

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