Question

solve the following quadratic equation by using formula method 5xsquare+13x+8= 0​

Answer 1

Answer:

for the father of economics and Indian economy for IAS PRE

Step-by-step explanation:

GGG a square is a square is a square is a

Answer 2

Answer:

5x^2 + 13x + 8 = 0. 5×8 = 40

5x^2 + 5x + 8x + 8 = 0. •.• 8×5 = 40, 8+5 =13

5x(x + 1) + 8(x+1) = 0

(x+1) (5x+8) = 0

x+1 = 0. OR 5x+8=0

:. x =-1 OR 5x = - 8

:. x = - 8

5

The above is Factorization.

Comparing eqn with ax^2 + bx + c = 0

a = 5 , b = 13 , c = 8

:. b^2 - 4ac = 13^2 - 4(5)(8)

= 169 - 160

= 9

BY FORMULA METHOD,

Now, x = -b + under root b^2 - 4ac/2a

x = -13 + underroot 9 / 2(5)

x = - 13 + 3 / 10

:. x = -13+3. OR x = -13 - 3

10. 10

:. x = -10 OR x = -16

10. 10

:. x = -1 OR :. x = -8

5

Do mark it as the Brainliest !