问题 解答题

把下列各式分解因式:

(1)xn+1+xn+3

(2)4q(1-p)3+2(p-1)2

(3)(x-3)2+(3x-9).

答案

(1)xn+1+xn+3=xn+1(1+x2);

(2)4q(1-p)3+2(p-1)2

=2(1-p)2[2q(1-p)+1]

=2(1-p)2(2q-2qp+1);

(3)(x-3)2+(3x-9)

=(x-3)2+3(x-3)

=x(x-3).

多项选择题
阅读理解

Things to do this weekend

★Scottish Dance Party

The Bellingham Scottish Country Dancers, which holds such events, welcomes all ages and dance levels to attend tonight’s ceilidh (同乐会), which starts at 7:30 p.m. at the Boys & Girls Club. Dancers will be taught and snacks will be served. Admission is $7 for adults, $4 for students. Call 734-1295 or go to www.bellinghamscd.org for more information.

★All-ages Showcase

Vincent Blackshadow is among the performers at an all-ages concert at 8 tonight at the Old Foundry. The High School Band Showcase is organized by Whatcom All-Ages Arts and Music (WhAAM), a community organization founded with the aim of providing a safe all-ages music and arts place. Admission is $5. Call 201-7408 or visit www.myspace.com/whaam for details.

★A Touch of Shakespeare

Hans Altweis and Jennifer Sue Johnson star in the Seattle Shakespeare Company’s performance of a part of Shakespeare’s play, Othello, in Russ Banham’s adaptation (改编) that draws upon (利用) the magic realism of Latin American culture. The play runs Sept. 5 through Sept. 8 at the Seattle Center House. Tickets are from $18 --$30. Call (206) 733-8222 or go to www.seatttleshakespeare.org for more information.

★Hike Around Squires Lake

Enjoy views from Alger Alp, followed by a hike around Squires Lake. This hike is easy. Meet organizers at the foot of Alger Alp at 10 a.m. To get to Squires lake, take Interstate 5 south to Lake Samish exit 242, then go east for 0.7 mile on Old Highway 99. The hike is free. Information: www.mountbakerclub.org.

小题1:Which of the following is NOT mentioned in the passage?

A.Photography.

B.Sports.

C.Arts.

D.Dance.小题2:According to the passage, which of the following is free?

A.Hike Around Squires Lake.

B.All-ages Showcase.

C.Scottish Dance Party.

D.A Touch of Shakespeare.小题3:Which of the following websites can offer more information about Othello?

A.www.mountbakerclub.org.

B.www.bellinghamscd.org.

C.www.myspace.com/whaam.

D.www.seatttleshakespeare.org.小题4:If you want to enjoy music and only have $5, which of the following can you go to?

A.Scottish Dance Party.

B.All-ages Showcase.

C.A Touch of Shakespeare.

D.Hike Around Squires Lake.小题5:According to the passage, we can know that__________.

A.both the old and the young can go to Scottish Dance Party

B.calling 201-7408 can help you know more about a hike

C.it takes a lot of time to reach Squires Lake

D.Hans Altweis is a famous writer