解方程:-24x^2+53x+25=0
问题描述:
解方程:-24x^2+53x+25=0
答
解方程:
-24x^2+53x+25=0
x^2-53x/24-25/24=0
Δ=(-53/24)^2+25/6
=2809/576+25/6
=5209/576
=9.0434
x1=53/48+3/2=125/48
x2=53/48-3/2=-19/48