Question

if x minus 4 is a factor of a polynomial 2 X + a x + 12 Y and x minus 5 is a factor of polynomial x cube minus 7 x square + 11 x + B then what will be the value of a - 2B​

Answer 1

Answer:

f(4) = 8+4a+12y

a +3y = -2 ---------(2)

f(5) = 125-175+55+B

B = -5

question is wrongly written now ....