Question

4X平方减6X减3等于0用配方法解答要过程

Answer 1

4x²－6x－3=0

4x²－6x=3

x²－(3/2)x=3/4

x²－(3/2)x＋(3/4)²=(3/4)＋(3/4)²

[x－(3/4)]²=21/16

x－(3/4)=±√(21/16)

x=(3/4)±(√21/4)

x=(3±√21)/4