Factorise x^(4) + x^(2) + 1 .
3x−9+4x−4x−1×(x−3)=15x+33x−9+4x−4x−1×(x−3)=15x+37x−13x−1×(x−3)=15x+37x−13x−1×(x−3)=15x+3a7x−13x+3=15x−1x−3a7x−13x+3=15x−1x−3 7x2−13x+21x−39=15x2−60x+457x2−13x+21x−39=15x2−6...
结果1 题目Factorise the following:(1)x^3+x^2+x+1=(2)a^3-a^2+a-1=(3)x^3+x^2-x-1=(4)x^3+x^2+xy^2+y^2=(5)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)...
(4)15 pq 15 9q 25p (5)z– 7 7 x y – x y z 相关知识点: 试题来源: 解析 (1)Solution:x2 xy 8x 8y = x × x x × y 8 × x 8 × y=x(x y) 8(x y)=(x y)(x 8) (2)15xy - 6x 5y - 2 = 3×5×x×y-3×2×x×5xy-2= 3x (5y - 2) 1...
【题目】Factorise the following:(1) x^2-5x+6 ;(2) 4x^2-5(3) 4x^2+8x-1 ;(4) 3t^2-4t-1 ;(5)
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)(...
一II. Fill in the blanks4 Factorise: x^2+x+1/4=5Facotise:1/4x^2-x+1= 6 Factorise: 4x^2-4x+1=7 Factorise: x^2y^2-4xy+4=8 F actorise:9-12t+4t^2=9 Factorise: ()^2+20xy+25y^2=().10 Factorise:+4mm+1=(_)2. 相关知识点: 试题来源: 解析 (ζ/(I)+x) ...
1use the factor therem to factorise the following cubics as far as possible:f(x)=x(的三次方)-7x+62find a given that (x+4) is a factor of f(x)=x(的三次方)+8x^+ax+12 and hence factorise f(x) completely.3show that (x-2) is a factor of f(x)=x的三次方-4x^+x+6 and ...
a level的数学.1.Simplify (x^3+7^x2+5x-28)/(x+4)2.Factorise completely x^3+5x^2-2x-243.Make r the subject of the formula 4.If ,find the value of y when x = 9 given that y = 24 when x = 4 .5.The probability that I oversleep on any given day is 1/10.If I ...
1use the factor therem to factorise the following cubics as far as possible:f(x)=x(的三次方)-7x+62find a given that (x+4) is a factor of f(x)=x(的三次方)+8x^+ax+12 and hence factorise f(x) completely.3show that (x-2) is a factor of f(x)=x的三次方-4x^+x+6 and ...