Question

Heelp!!!

Answer 1

SOMEONE HELP HER!!!!!

Answer 2

What do you need help on?

Answer 3

2) Finding the roots of equations:

a) x2 - x - 20 = 0

b) x2 - 3x -4 = 0

c) x2 - 8x + 7 = 0

Answer 4

for a:
x^2 -x -20 =0 can be written as
(x-5)(x+4)
set both equal to 0
x - 5 = 0
x = 5
x + 4 = 0
x = -4
therefore, the roots are 5 and -4

Answer 5

the 3rd equation has no roots