Question

find the value of a,b so that polynomial x3-ax2-13x+b has x-1 and x+2 as factor. plz solve it. u will get 40 points​

Answer 1

Answer:

❣ ANSWER ❣

✡ ROCKY HERE ✌

✴ HAPPY TO HELP ❤

Step-by-step explanation:

p( 1 ) = p (-2)

1 ^3 - a(1)^2 - 3 (1) + b = (-2)^3-a (-2)^2 - 3 (-2) + b

1 - a - 3 + b = -8 - 4a + 6 + b

- 2 - a + b = -2 - 4a + b

- a + b = - 4a + b

3a = 0

a = 0

Answer 2

Step-by-step explanation:

I hope I help you

please follow me and mark as brainlist