解答:提取公因式2,得到$2(x^2 - 2x + 1)$。然后利用完全平方公式,得到$2(x - 1)^2$。 将多项式$x^2 + 4x - 5$进行因式分解。 解答:利用十字相乘法,找到两个数-1和5,它们的和等于4,它们的积等于-5。然后将其与多项式的一次项和常数项组合,得到$(x - 1)(x + 5)$。...
(i) x^(2)+9x+18=x^(2)+6x+3x+18 {by splitting middle term] =x(x+6)+3(x+6)=)x+3(x+6) (ii) 6x^(2)+7x-3=6x^(2)+9x-2x-3 [by splitting middle term] (iii) 2x^(2) -7x -15=2x^(2) -10x+3x-15 [by splitting middle term] =2x(x-5)+3(x-5)=(2x+3)(x-5)
Factorise : `(2x-y)^(3)-(x+y)^(3)+(2y-x)... Factorise :(2x−y)3−(x+y)3+(2y−x)3Solution inBengali Video Solution Struggling With Polynomials? Get Allen’s Free Revision Notes Free ALLEN Notes Text Solution Verified by Experts ...
such that a + b =5 and ab = 6. on solving this we obtain, a = 3 and b = 2 thus, the above expression can be written as: x 2 + 3x + 2x + 6 = x(x + 3) + 2(x + 3) = (x + 3)(x + 2) thus, x+3 and x+2 are the factors of the polynomial x 2 + 5x + ...
Factorise x2−(x−z)2x2−(x−z)2. Factorise x2+xy+8x+8yx2+xy+8x+8y. Factorise the following:3m2−17m−203m2−17m−20 Factorise:4a2−4b2+4a+14a2−4b2+4a+1. Factorise the following:x8−y8x8−y8 Factorise the following :y2+24y+144y2+24y+144 Factorise\n1....
百度试题 结果1 题目16 Factorise 6x^2+7x-20 .(3x-4)(2x+5) final answer..[2] 相关知识点: 试题来源: 解析 (3x-4)(2x+5) final answerB1 for (ax+b)(cx+d) where ac=6andad+bc=7 or bd=-20 反馈 收藏
( x+1 ).5 Factorise: 2ar +4hr -ay-2by = (_2ax-ay )+( 4bx-2by ) = ( 2x-y )( a+2 b ).6 Factorise: x2-a2-2ab-b2 =( x2 )-(a2+2ab+b2) =( x+a+ b )( x-a- b ).7 Factorise: a2 +ax-b2 +bx = (a+b)(a-b+x).8 Factorise: xy-x-y+1=(y-1...
x^3-2x^2+3x-6= 相关知识点: 试题来源: 解析 (1)=(x^2+1)(x+1)(2)=(a^2+1)(a-1)(3)=(x+1)^2(x-1)(4)=(x^2+y^2)(x+1)(5)=(x^2+3)(x-2) (1)N/A.(2)N/A.(3)N/A.(4)N/A.(5)N/A.反馈 收藏
11 (a) Factorise 6 a +3ay-4b-2by.6a-4b-3ay-2by=2(3a-2b)+y (3a-2b) [M1]=(3a-2b)(2+y)(3a-2b)(2+y)Answer (a)...(b) Faconsefuliy6x^3-27x^2+30x .=3x(2x^2-9x-10)[M1] =3x(2x-5)(x-2) 相关知识点: 试题来源: 解析 6a-4b+ 3ay-2by = 2...
3ab+62;a+b,b-c-|||-4-|||-axb;ax-b;x+1 52ax-ay;4bx-2by;2x--|||-y;a+26 6x2;a2+2ab+62;x+a+b;x--|||-a-b7(a+b)(a-b+x)8(y-1)(x1) 结果一 题目 II. Fill in the blanksFactorise:ab+b^2-ac-bc=()-() 4 Factorise:ax^2+ax-b-bx=()=() 5 Facto...