3^2-X^2=4^2-(5-X)^2求解答过程和最后答案._数学解答

3^2-X^2=4^2-(5-X)^2求解答过程和最后答案.

人气：223 ℃　时间：2020-09-15 18:42:42

解答

3^2-X^2=4^2-(5-X)^2
9-X^2=16-(25-10X+X^2)
9-X^2=16-25+10X-X^2
10X=9+25-16
10X=18
X=1.8