(x 2 -1) (x+1) therefore, the factorisation of x 3 + x 2 –x – 1 gives (x 2 -1) (x+1) solved examples question 1: check whether x+3 is a factor of x 3 + 3x 2 + 5x +15. solution: let x + 3= 0 => x = -3 now, p(x) = x 3 + 3x 2 + 5x +15 let us...
例如,对于$x^3 + 3x^2 + 3x + 1$,可以将其分组为$(x^3 + 3x^2) + (3x + 1)$,然后利用公式法和提取公因式进行分解。 因式分解在解决数学问题中的应用 因式分解在解决数学问题中具有广泛应用。在代数方程中,通过因式分解可以将方程转化为更简单的形式,便于求解。在不等式证明中,...
百度试题 结果1 题目Factorise12x^2+5x-3(3x-1)(4x+3) 相关知识点: 试题来源: 解析 (3x-1)(4x+3) 反馈 收藏
Factor the equation 3x² +5x-2 by breaking down the 5x term into the sum of two terms, ax and bx. You choose a and b so that they add up to 5 and when multiplied together give the same product as the product of the coefficients of the first and last term of the equation 3x...
11 (a) Factorise.5x-15..[1](b)Solve.4(3x-2)=28---[3](c)Simplify.(4a)/b*(3b^2)/(2a^2)[2](d) On the number line, show the inequality x≤3.4 3-i1034[1](e) Solve.7x3x+6---[2](f) Solve these simultaneous equations.x+y=5x-y=7r=y=...[2] 相关知识点: ...
12x+20y 8x+4x+22y–2y 12x–6y+26y 8x+6x–2x+22y–2yCompleteyourdiagram Lettersfornumbers:a+b=10,whatcouldaandbbe?ifa=2,b=8whatisa+b?ifa=25,b=5whatisa+b?Letters,numbersandarea 6 2 b 5 Area?2x6=12 Area?5xb=5b Letters,numbersandarea 4 a 4 a Area?4x4=16Area?axa=a2 Lette...