Question

quadratic equation of 5x²+4√10+8=0​

Answer 1

Step-by-step explanation:







How do you solve 5x2−8x−4=0 using the quadratic formula?

Algebra  Quadratic Formula

1 Answer



seph

Jun 4, 2016

x=2, x=−25

Explanation:

The quadratic formula states that given a quadratic equation

ax2+bx+c=0

Its roots can be obtained using the equation below

x=−b±√b2−4ac2a

5x2−8x−4=0

⇒x=−(−8)±√(−8)2−4(5)(−4)2(5)

⇒x=8±√64+8010

⇒x=8±√14410

⇒x=8±1210

⇒x=2010⇒x=2

⇒x=−410⇒x

Answer 2

Answer:

dont know

Step-by-step explanation: