Question

if x "-3" is a factor of the expression-3 x⁴-x²+kx

Answer 1

Answer:

K=84

Step-by-step explanation:

if x=3 is a factor of -3x⁴-x²+kx.

then at x=3 -3x⁴-x²+kx=0

=> -3(3)⁴-3²+3k = 0

=> -243 -9 +3k=0

=>3k = 252

=>k = 84 ANSWER