Question

If f(x)=px⁴+7x²-18 is divided by (x-3) then the value of P is​

Answer 1

Answer:

- 5 / 9

Step-by-step explanation:

f ( x ) = px⁴ + 7x² - 18 = 0

x - 3 = 0

x = 3

f ( 3 ) => p ( 3 )^4 + 7 ( 3 )^2 - 18 = 0

        => p ( 81 ) + 7 ( 9 ) - 18 = 0

        => 81p + 63 - 18 = 0

        => 81p + 45 = 0

        => 81p = - 45

        => p = - 45 / 81

        => p = - 5 / 9