Question

find the root of quadratic equation 2x^2-root5x-2 using quadratic formula​

Answer 1

Answer:

√5+√21/4 and √5 - √21 /4

Step-by-step explanation:

2x² - √5x - 2 = 0.

x = -b±√(b² - 4ac) / 2a

a = 2, b = -√5, c = -2

x = -(-√5) ±√(-√5)² - 4 (2)(-2) / 2 * 2

  = √5 ±√21 / 4

The roots of the equation are √5+√21/4 and √5 - √21 /4