15+90=105

k cho mk nha bạn

hổ không ăn cỏ nha bạn

\(\frac{2x+\frac{3x-4}{5}}{15}\) < \(\frac{\frac{3-x}{2}+7x}{5}\) + 1 - x

Rewrite the following Yes/No question in reported speech, use IF or WHETHER:

1. "Does she like sports?" Hoa asked Lan

2. "Does your sister and brother go to the same school?" She asked Nam.

3."Do the children perform on TV?" Her mother asked her teacher.

4."Are there some oranges in the fridge?" She asked her mom.

5. "Will it rain tomorrow morning?" He asked his friend.

6."Do you travel to school by bus?" Tam asked Peter.

7."Are Tam and Hoa late for class?" Tuan asked Lan.

8. "Does Lan's father work for a bank?" Thu asked Long.

9."Do the students know something about their new English teacher?" Phong asked Tuan.

10."Can you speak Chinese?" She asked me.

a) \(\frac{x-5}{3}\) < \(\frac{x-8}{4}\)

b) \(\frac{x+3}{4}\) +1 < x + \(\frac{x+2}{3}\)

c) \(\frac{3x-1}{4}\) - \(\frac{3\left(x-2\right)}{8}\) -1 > \(\frac{5-3x}{2}\)

d) \(\frac{2x+\frac{3x-4}{5}}{15}\) < \(\frac{\frac{3-x}{2}+7x}{5}\) +1 - x

e) (x-3)(x+3) < (x + 2)\(^2\) + 3

g) \(\frac{2x+1}{2}\) + 3 ≥ \(\frac{3-5x}{3}\) - \(\frac{4x+1}{4}\)

h) \(\frac{x+2}{x-3}\) < 0

i) \(\frac{5x-3}{5}\) + \(\frac{2x+1}{4}\) ≤ \(\frac{2-3x}{2}\) -5

Giải bất phương trình

a) (x - 1) (x + 2) > (x - 1)\(^2\) + 3

b) x(2x - 1) - 8 < 5 - 2x (1-x)

c) (2x + 1)\(^2\) + (1-x) .3x ≤ (x+2)\(^2\)

d) (x - 4)(x +4) ≥ (x + 3)\(^2\) + 5

e) (x + \(\frac{1}{9}\)).(2x - 5) < 0

g) (4x - 1)(x\(^2\) + 12)(-x + 4) > 0

f) x\(^2\) - 6x + 9 < 0