Question

If the quadratic equation is x2

+ 7x + 10, then answer the following and find discriminant
​

Answer 1

Equation:

x² + 7x + 10

To Find:

☛ discriminant , zeroes

Solution:

☛ x² + 7x + 10 = 0

☛ x² + 5x + 2x + 10 = 0

☛ x(x + 5) + 2(x + 5) = 0

☛ (x + 5)(x + 2) = 0

Zeroes are -5 and -2

Discriminant = b² - 4ac

b = 7 , a = 1 , c = 10

Discriminant = (7)² - 4(1)(10)

Discriminant = 49 - 40

Discriminant = 9