Question

Solving by factorizaton method
what the roots of the given
quadratic equation:-x2
+x-20=0
are the..
​

Answer 1

Step-by-step explanation:

4.8/5

61

x² + x - 20 = 0

splitting the middle term ,

x² + 5x - 4x - 20 = 0

x( x + 5 ) - 4( x + 5 ) = 0

( x + 5 )( x - 4 ) = 0

x + 5 = 0 or x - 4 = 0

x = -5 or x = 4

Therefore ,

Roots of given quadratic equation are -5 , 4

I hope this helps you.