解方程,(2x+1)(2x-1)-4(x+2)²=x
问题描述:
解方程,(2x+1)(2x-1)-4(x+2)²=x
答
(2x+1)(2x-1)-4(x+2)²=x→4x²-1-4(x²+4x+4)=x→4x²-1-4x²-16x-16=x→-16x-17=x→-17x=17→x=1
解方程,(2x+1)(2x-1)-4(x+2)²=x
(2x+1)(2x-1)-4(x+2)²=x→4x²-1-4(x²+4x+4)=x→4x²-1-4x²-16x-16=x→-16x-17=x→-17x=17→x=1