Matematika

Pertanyaan

pertanyaan 1.) (2x+y)²+(x+2y+1)=

1 Jawaban

  • (2x + y)² + (x + 2y + 1)
    = (2x + y)(2x + y) + (x + 2y + 1)
    = (2x + y) + (2x + x + y + 2y + 1)
    = (2x + y) + (3x + 3y + 1)
    = 2x + 3x + y + 3y + 1
    = 5x + 4y + 1

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