Answer:
Solution given:
x²+x-20=0
x²+5x-4x-20=0
x(x+5)-4(x+5)=0
(x+5)(x-4)=0
either.
x=-5
or
x=4
Step-by-step explanation:
x² + x -20 =0
or, x²+(5-4)x -20
or,x ²+5x -4x -20=0
or,x(x +5)-4(x+5)=0
or,(x+5)(x-4)=o
either,
x+5=0. x-4=0
or,x=0-5. or,x= 0+4
or,x=-5. or, x=4
hope it is helpful to you ☺️
