一元二次方程括号x减三的平方等于四乘以括号2x加一的平方

2024-11-16 15:22:17
推荐回答(1个)
回答(1):

(x-3)²=4(2x+1)²
[(4x+2)]²-(x-3)²=0
(4x+2+x-3)(4x+2-x+3) = 0
(5x-1)(3x+5) = 0
x1 = 1/5
x2 = -5/3