Question

show that 2x-3 is a fator of x-2x2-9x2+12​

Answer 1

hey your answer is :-

2x - 3 = 0

x = 3/2

Now, put x = 3/2

.

Q. > 3/2 - 2 ×(3/2)^2 - 9 (3/2)^2 + 12

= > 3/2 - 2(9/4) - 9(9/4) + 12

= > 3/ 2 - 9/ 2 - 81/4 + 12

=> 6 - 18 - 81 / 4 + 12

=> -93 / 4 + 12

= > - 93 + 48 / 12

= > - 45 / 12

So, 2x - 3 is not factor of polynomial