If (x-3) is factor of polynomial (x³-4x²-3x+k) then k is​

Question

If (x-3) is factor of polynomial (x³-4x²-3x+k) then k is​

in progress 0
Vivian 1 week 2021-09-10T13:53:51+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-09-10T13:55:02+00:00

    Answer:

    mark me BRAINLIEST

    its helpful

    Step-by-step explanation:

    x-3=0

    x =+3 ( put value of x in polynomial)

    • (x³ -4x² -3x +k) =0
    • (3)³ -4(3)²-3×3 +k =0
    • 27 -4×9 -9 + k =0
    • 27 -36 -9 +k =0
    • 27 -45 +k =0
    • -18 +k =0
    • k = +18
    0
    2021-09-10T13:55:22+00:00

    Answer:

    K=18

    Step-by-step explanation:

    x-3=0

    Therefore x = 3

    Now substituting in the place of x as 3

    (3)^3-4(3)^2-3(3)+k=0

    27-4(9)-9+k=0

    18-36=-k

    -18=-k

    Therefore k=18

Leave an answer

Browse
Browse

18:9+8+9*3-7:3-1*13 = ? ( )