MC:
1)it's given that ax=ay and cx=dy are factors of Ax²+Bxy+Cy² and A=ac.Which of the following equal Ax²+Bxy+Cy² ?
A.(a+c)x+(b+d)y
B.(ax+by)(cx+dy)
C.acx+bdy
D.(ac+bd)xy
2)Factorize 8a+4b
A.8(a+b)
B.4(2a+b)
C.8ab
D.32ab
3)Which of the following is a factor of 3xy+2y+6x+4?
A.y
B.3x
C.y=2
D.x+3
4)Which of the following can be written as 6mn+3m² after expansion?
A.3m(2n+m)
B.3m(n+3m)
C.3m(26m)
D.6m(n+3m)
Short Question:
5)Factorize the following polynomials.
A.)2x+6xy
B.)ab+a²
C.)2u²v+uv-10uv²
D.)12xy²z+6x²z+10yz²
E.)8s-8st+5-5t
F.)2ab-6a+5b-15
G.)26+14s-13t-7st
H.)5m(n-3)+m²(3-n)
I.)2x^4-x³+2x-4x²
J.)6cd(3-d)-3(2d-6)
Longer question:
6)
A.)Factiorize the polynomial 2y-4-x(3y-6).
B.)Using the result of part (A),factorize the polynomial 2y-4+6(2y+1)(2-y).
更新1:
Extra MC: 1)Which of the following polynomial can be written in the form of(ax+b)²? I.x²+2x+1 II.x²-2x+1 III.x²+x+1 A.)I only B.)III only C.)I & II only D.)I,II,and III
更新2:
2)Which of the following is/are (a)factor(s) of 25(a+b)²-4(a-b)² I.a=b II.3a+7b III.(7a+3b)² A.)I only B.)II Only C.)I nd III only D.I,II and III
更新3:
更正部份: 1)it's given that ax+ay and cx+dy are factors of Ax²+Bxy+Cy² and A=ac.Which of the following equal Ax²+Bxy+Cy² ? A.(a+c)x+(b+d)y B.(ax+by)(cx+dy) C.acx+bdy D.(ac+bd)xy 3)Which of the following is a factor of 3xy+2y+6x+4? A.y B.3x C.y+2 D.x+3
更新4:
更正部份: 5) I.)2x^4-x³+2x-4x², 2x^4即是2x的4次方!