2x²-16x=-32怎么解?准确的说是4²+x+(8-x)²+4²=64这个方程怎么解!
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![2x²-16x=-32怎么解?准确的说是4²+x+(8-x)²+4²=64这个方程怎么解!](/uploads/image/z/1632552-24-2.jpg?t=2x%26%23178%3B-16x%3D-32%E6%80%8E%E4%B9%88%E8%A7%A3%3F%E5%87%86%E7%A1%AE%E7%9A%84%E8%AF%B4%E6%98%AF4%26%23178%3B%2Bx%2B%EF%BC%888-x%EF%BC%89%26%23178%3B%2B4%26%23178%3B%3D64%E8%BF%99%E4%B8%AA%E6%96%B9%E7%A8%8B%E6%80%8E%E4%B9%88%E8%A7%A3%21)
2x²-16x=-32怎么解?准确的说是4²+x+(8-x)²+4²=64这个方程怎么解!
2x²-16x=-32怎么解?准确的说是4²+x+(8-x)²+4²=64这个方程怎么解!
2x²-16x=-32怎么解?准确的说是4²+x+(8-x)²+4²=64这个方程怎么解!
疑似:4²+x²+(8-x)²+4²=64
x²+(8-x)²=32
x²+64-16x+x²=32
2x²-16x+32=0,
x²-8x+16=0,
(x-4)²=0,
解得x=4
提示:直接开平方法
移项
除以2
x²-8x+16=0
(x-4)²=0
x-4=0
x=4
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