Question

Check whether (a-2) is a factor of 2a^3 - 4a^2 + 5a - 12​

Answer 1

Answer:

(a-2) =0

a=2

Step-by-step explanation:

p(a)=2a³-4a²+5a-12

now put 2 in place of a

p(2)= 2(2)³-4(2)²+5(2)-12

= 2×8-4×4+5×2-12

= 16-16+10-12

= 26-28

= -2

so (a-2) is not the factor of 2a³-4a²+5a-12