Matematika

Pertanyaan

No.2
a. Nilai x?
Tolong dibantu ya... thanks
No.2 a. Nilai x? Tolong dibantu ya... thanks

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1 Jawaban

  • 15² + (x+6)² = (x+11)²
    225 + x²+ 12 x + 36 = x² + 22x + 121
    12x - 22x + x²- x² = 121 - 225 - 36
    -10x + 0 = -140
    -10x = -140
    x = -140/(-10)
    x = 14
    Jadi, x = 14

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