Mathematics
Junior High
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求解,謝謝🙏(有點看不懂上面的解析

96+x 160+x 64 ?(96+x) = 64 (160+x) 96+x (x+64)=5120, x=64±5120(負不合) 按計管機涅755-8
國二數學

Answers

✨ Best Answer ✨

上面的式子展開得到: 96²+192x+x²=64×160+64x
移項: x²+128x=64×160-96²
配方法: x²+128x+64²=64×160-96²+64²
整理式子: (x+64)²=(16×4×16×10)-(16×6)²+(16×4)²
=(16²×40)-(16²×6²)+(16²×4²)
=16²×(40-36+16)=5120
得到第二式 (x+64)²=5120

Jenny

謝謝🙏

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