用因式分解法解2(x+5)平方=1
问题描述:
用因式分解法解2(x+5)平方=1
答
[2(X+5)+1][2(X+5)-1]=0 [2X+11][2X+9]=0 X1=-11/2 X2=-9/2
用因式分解法解2(x+5)平方=1
[2(X+5)+1][2(X+5)-1]=0 [2X+11][2X+9]=0 X1=-11/2 X2=-9/2