Question

Collective and abstract noun

12

Across

4. a group of stairs

5. a felling of extreme dislike

7. a group of crows 9. group of cattle

10. a emotion felt when very angry

11. A quality shared among friends

12. a quality possessed by those who are honest

Down

1. a group of mountains

2. a quality possessed by those who are royal

3. a quality possessed by intelligent people

6. a group of bees

8. a group of reed​

Answer 1

Answer:

y2 + 3√5/2y - 5 = 0

2y2 + 3√5y - 10 = 0

2y2 + (4√5y - √5y) - 10 = 0

2y2 + (4√5y - √5y) - 10 = 0

2y(y + 2√5) - √5(y + 2√5) = 0

(y + 2√5)(2y - √5) = 0

⇒ y = - 2√5, √5/2

Verification:

Sum of the zeroes = - (coefficient of x) ÷ coefficient of x2

α + β = - b/a

(- 2√5) + (√5/2) = - (3√5)/2

= - 3√5/2 = - 3√5/2

Product of the zeroes = constant term ÷ coefficient of x2

α β = c/a

(- 2√5)(√5/2) = - 5

- 5 = - 5