Question

Question 5
For the polynomial p(x) = 2x3 - 7x2 - 7x - 2
i)
Show that x - 1 is a factor of the p(x)​

Answer 1

if x-1 is a factor of the p(x)

then x value is properly solve this whole function

x=1 put on function

and get function value 0

$2 {x}^{3} - 7 {x}^{2} + 7x - 2 \\ 2 \times {1}^{3} - 7 \times {1}^{2} + 7 \times 1 + 2 \\ 2 - 7 + 7 - 2 \\ 5 - 5 \\ 0$

hence prove