先把他乘以4會比較好運算
(4(x+1)(x+2)+1)/4 (要記得除以4,因為題目并沒有真的放大4倍)
=(4x^2+12x+8+1)/4
=(4x^2+12x+9)/4
=x^2+3x+2.25
=(x+1.5)^2
(x+1)(x+2)十1/4因式分解等于多少?
(x+1)(x+2)十1/4因式分解等于多少?
其他人氣：617 ℃時間：2020-06-16 07:59:21
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