Question

for what value of a (x-5) a factor of x^3 -3x^2-10x+24

Answer 1

here your solution, (x-5)is px
x-5=0
x=5
soln=x³-3x²+ax-10
5³-3×5²+a×5-10
125-75+5a-10
125-75-10+5a
125-85+5a
40+5a
a=-5+40
a=35..ans