Question

class 10 chapter quadratic equation plz give correct answer wrong answer will reported​

Answer 1

Step-by-step explanation:✅VERIFIED ANSWER

1. 7x²+kx-3=0,x=2/3

putting the value of x

7×(2/3)²-2k/3-3=0

28/9-3=2k/3

(29-9)/9=2k/3

20/9×3=2k

20/3=2k

k=20/6

k=10/3

2. x²-x(a+b)+k=0,x=a

a²-a²-ab+k=0

-ab+k=0

k=ab

3. kx²+_/2x-4=0, x=_/2

2k+2-4=0

2k=2

k=2/2

k=1

4. x²+3ax+k=0,x=-a

a²-3a²+k=0

-2a²+k=0

k=2a²

plese mark me brailiest

Answer 2

Answer:

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