При каком значении k уравнение имеет корень, равный 0,2? kx^2+12x-3x=0

1. - Does it often rain there? - Yes, it does. 2. - Is it raining? - Yes, it is. 3. - Did it rain yesterday? -  Yes, it did. 4.- Is it cold today?- Yes, it is. 5. - Will it snow next week? - Yes, it will. 6. - Is there a snowman in the park? - Yes, there is. 7. - Is it a snowman? - Yes, it is.8. - Does she often wear jeans? - Yes, she does. 9. - Is she wearing jeans? - Yes, she is. 10. - Did she buy the books? - Yes, she did.

кх²+12х-3х=0кх²+9х=0х=0,2к·(0,2)²+9·0,2=00,04к+1,8=00,04к=-1,8к=-1,8:0,04к=-45Ответ: при к=-45