Penjelasan dengan langkah-langkah:
a = x
b = 2x + 2
c = 3x - 2
c² = a² + b²
(3x - 2)² = x² + (2x + 2)²
(9x² - 12x + 4) = x² + (4x² + 8x + 4)
9x² - 5x² - 12x - 8x + 4 - 4 = 0
4x² - 20x = 0
4x(x - 5) = 0
x(x - 5) = 0
x = 0 atau x = 5
ambil x = 5 krn sisi tdk mungkin 0
panjang masing².
a = 5 cm
b = 2(5) + 2
b = 12
c = 3(5) - 2
c = 13 cm
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Penjelasan dengan langkah-langkah:
a = x
b = 2x + 2
c = 3x - 2
c² = a² + b²
(3x - 2)² = x² + (2x + 2)²
(9x² - 12x + 4) = x² + (4x² + 8x + 4)
9x² - 5x² - 12x - 8x + 4 - 4 = 0
4x² - 20x = 0
4x(x - 5) = 0
x(x - 5) = 0
x = 0 atau x = 5
ambil x = 5 krn sisi tdk mungkin 0
panjang masing².
a = x
a = 5 cm
b = 2x + 2
b = 2(5) + 2
b = 12
c = 3x - 2
c = 3(5) - 2
c = 13 cm