问题
解答题
解方程:(x+3)(2x-5)-(2x+1)(x-8)=41.
答案
∵(x+3)(2x-5)-(2x+1)(x-8),
=2x2+x-15-(2x2-15x-8),
=16x-7,
∴16x-7=41,
解得:x=3.
解方程:(x+3)(2x-5)-(2x+1)(x-8)=41.
∵(x+3)(2x-5)-(2x+1)(x-8),
=2x2+x-15-(2x2-15x-8),
=16x-7,
∴16x-7=41,
解得:x=3.