Answer:
The answer for the first equation is,
X = 6, -4
The answer for second equation is,
X = 9,2
a.) X^2 - 2x – 24 = 0
x^2-6x+4x-24=0
this is expressing negative 2x as the sum of two terms which are negative 6x and positive 4x
x(x-6)+4(x-6)=0
(x+4)(x-6)=0
(x+4)=0. so x=-4
(x-6)=0 so x=6
b.) x^2 - 11x + 18 =0
