Problem2x2+5x+32x^2 + 5x + 32x2+5x+3分步解答确认 a=2a = 2a=2、b=5b = 5b=5、c=3c = 3c=3。计算 ac=6ac = 6ac=6。找出两个相乘等于 666、相加等于 555 的数:(2,3)(2, 3)(2,3)。拆分中间项:2x2+2x+3x+32x^2 + 2x + 3x + 32x2+2x+3x+3。分组提取公因式:2x(x+1)+3(x+1)=(2x+3)(x+1)2x(x + 1) + 3(x + 1) = (2x + 3)(x + 1)2x(x+1)+3(x+1)=(2x+3)(x+1)。答案(2x+3)(x+1)(2x + 3)(x + 1)(2x+3)(x+1)想解其他题?打开 factoring 求解器 →相关例题/solve/algebra/factor-x2-plus-7x-plus-12/solve/algebra/2x2-plus-7x-plus-3延伸阅读/blog/factoring-polynomials-step-by-step