What is the value of k if 2x3 − 3x2 kx − 4 is divided by x − 3 and gives a remainder of −7? −10 −26 10 26

Hello,

|x^3|x^2|x^1|x^0
|2    |-3   |k    |-4
x=3|      |6    |9    |3k+27.
|2    |3    |k+9|3k+23.

If remainder=-7 then -7=3k+23==>3k=-7-23==>3k=-30==>k=-10

Answer A

Aand b are correctly balanced reactions. they have the same number of atoms in both sides of the reaction

X=14 hope it !