16² + 30² = 2 * 17² + 2x²
x² = 8 * 16 + 15 * 30 - 17² = 128 + 450 - 289 = 289
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16² + 30² = 2 * 17² + 2x²
x² = 8 * 16 + 15 * 30 - 17² = 128 + 450 - 289 = 289
Verified answer
(16²+30²)=2×17²+2x²256+900=2×289+2x²
2x²+578=1156
2x²=1156-578
2x²=578|÷2
(2x/2)=(578/2)
x²=289
x=√289=17