Question

4.24-4.2x+x2=2.26解方程？

Answer 1

解尺困洞：陵枯尺手4.24-4.2x+x2=2.26
4.24-2.2x=2.26
2.2x=4.24-2.26
2.2x=1.98
x=0.9

Answer 2

4.24-4.2x+x^2 = 2.26
x^2 - 4.2x + 1.98 = 0
x = [4.2±√(4.2^2- 4 · 1.98)]/2 = [4.2±3.118]/迟哪指2
x = 3.659, 或码配缓稿 0.541