Tìm m để pt sau vô nghiệm a)3x^2-2x+m=0 b)(m-4)x^2-2mx+m-2=0 Ai cho đáp án đúng và nhanh nhất thì mik cho 5sao nhen

Với giá trị nào của m thì pt sau có nghiệm 9x^2 -6mx+m(m-2)

giải thích hộ mình vs ạ

His knowledge of English grammar is quite well --> good

giúp mình giải thích tại sạo vs ạ

 His knowledge of English grammar is quite well --> good

Giúp mik vs ạ

Giúp mik vs nha:> 1. I like roses. They smell ________________. (good) 2. Their son is ________________. (silly) 3. The cat's fur felt ________________and ________________. (soft / warm)

Tr ơi cíu tôi 163. Take an umbrella. It’s raining ________________. (heavy) 164. What a ________________day! (beautiful) 165. She is a ________________tennis player but her brother plays ________________. (bad / good) Fill in the gap with a suitable word: arrogant badly beautiful beautifully boring clever different easily friendly good interesting nice well We have got a lot of ________________pupils in our class. Here are some of them: Sally is a ________________girl because she always gets good marks and she also plays the guitar very ________________. The boys think Sandra is even ________________and she is the most ________________girl, too. But the girls don’t like her because they think she is ________________and plays volleyball ________________. Everybody likes Pat because he is ________________and ________________at playing football. And he also plays the saxophone very ________________. The most ________________pupil is Cindy. She is tall, good looking and all the boys fall in love with her ________________. She is very clever and she doesn't talk as ________________as a lot of our other girl.

118. I like roses. They smell ________________. (good) 119. Their son is ________________. (silly) 120. The cat's fur felt ________________and ________________. (soft / warm) 121. This lady has a ________________voice (loud). 122. 2. Jack always speaks ________________ (loud). 123. 3. Mary waits ________________in the doctor's waiting room (patient). 124. 4. Dad was quite ________________yesterday (sleepy). 125. Jim picked up the phone and spoke ________________ (quiet). 126. Mary works ________________ (careful). 127. Jack is often ________________ (happy). 128. Nelly walked around ________________ (nervous). 129. That man is a ________________person (nervous). 130. Susan and George work ________________ (slow). 131. Jill runs to school ________________ (fast). 132. Tom runs home ________________ (quick). 133. His story sounds ________________ (strange). 134. Paul is a policeman. He has a ________________job (dangerous). 135. The dog is always ________________ (hungry). 136. The boys play tennis ________________ (good). 137. They are ________________tennis players (good). 138. Frank sings ________________ (good). 139. Sandra speaks French ________________ (perfect). 140. This pullover was ________________ (expensive). 141. She looked for the purse ________________ (careful). 142. Paul walked home ________________ (sad). 143. Father spoke ________________ (angry). 144. She doesn't like sports. So she ________________does any sports (hard). 145. He is never ________________ (late). 146. She phoned me once a week. But ________________she didn't (late). 147. They did their homework ________________ (bad). 148. I must work ________________ (hard). 149. I don't like her pictures. She paints ________________ (terrible). 150. She likes the dress. It looks ________________ (modern). 151. Lucy is shy, so she cannot make friends ________________ (easy) 152. The dog looked ________________, so we gave him some food. (hungry) 153. There was long applause because she sang ________________. (beautiful) 154. I asked her why she was ________________but she didn’t tell me. (sad) 155. They spoke ________________because the baby was asleep. (quiet) 156. My aunt is a ________________driver. (slow) 157. Was the exercise ________________? (easy) 158. He could swim ________________across the river. (easy) 159. You don’t look very ________________. Are you ill? (good) 160. He drives too ________________. (dangerous) 161. This is my ________________car. (new) 162. The soup tastes really ________________. (good) Giúp mik nha🥺