Question

10.Show that (x-2) is a factor of 3x3+x2-20x+12.​

Answer 1

Answer:

$3 \times 3 = 9 + 2x11x - 20 = 9 {x}^{2} + 12 = 21$

Answer 2

Step-by-step explanation:

x-2 is a factor

x-2=0

x=2

given p(x)= 3x^3+x^2-20x+12

p(2)= 3(2)^3+(2)^2-20(2)+12

p(2)= 3(8)+4-40+12

p(2)=24+4-28

p(2)=0

here p(x)=0 so the given polynomial is. a factor for x-2