Question

if x-2 is a factor of 3x²+px-2,find p.also factorise the polynomial ​

Answer 1

Answer:

5,4answer

if x-2 is a factor of 3x²+px-2,find p.also factorise the polynomial

Answer 2

Step-by-step explanation:

$x - 2 = 0$

$x = 2$

put the value in equation

$3 {x}^{2} + px - 2$

$3( {2}^{2} ) + p(2) - 2$

$3(4) + p(2) - 2$

$12 + 2p - 2 = 0$

$2p = 2 - 12$

$2p = - 10 \\ p = \frac{ - 10}{2} \\ p = - 5$