giai pt (giup toi voi)

1.\(\dfrac{4x}{4x^2-8x+7}+\dfrac{3x}{4x^2-10x+7}=1\)

2.\(\dfrac{2x}{x^2+3x-10}\)+\(\dfrac{5x}{x^2+7x-10}=4\)

Thêm từ để được câu hoàn chỉnh

1.early this morning/children/decide/go/a run

2.life/country/definitely/changing/the better

3.the date/meeting/will/have to/change/tomorrow.

4.Tom/have/shower/telephone/rằng

5.last year/we/spend/week/My Son/and/I not want/leave

6.watching/television/consider/most/popular/kind/entertainment/nowadays

7.after/many/experiments/finally/fist/successful/flight/make/by/Wright brothers.

cmr

A=1^3+2^3+3^3...+2016^3 la so chinh phuong

Giup minh voi LAM ON NHANH LEN NHA

tim GTNN cua C=2x+1/x^2

B=((2x/x+3)-(x/3-x)+(3x^2+3/x^2-9)):(x+1)/(x-3)

A,rút gọn phân thức

b,tìm x để B nhận giá trị nguyên

tim x để( x^2+16):(x+3) là số nguyên