Question

If 2 is the zero of the polynomial x3-5x2+kx+10,then find k

Answer 1

Answer:

-3

Step-by-step explanation:

p(x)=>3x-5*2+kx+10 = 0

p(2)=>3*2-5*2+k*2+10 = 0

p(2)=>6-10+2k+10 = 0

p(2)=>6+2k = 0

p(2)=>2k = -6

p(2)=>k = -6/2

p(2)=>k = -3