Question

If x = -2 is a root of the polynomial P(x) = -2x4 - 7x3 - 3x2 - tx - 10, then find the value of t.

Answer 1

Answer:

Root means when you put x=-2 in Eq. you get answer=0

Step-by-step explanation:

-32+56-12+2t-10=0

t= -1

Answer 2

Answer:

value of t= -1

Step-by-step explanation:

x= -2 is root of polynomial -2x4-7x³-3x²-tx-10

so putting the value of x in this polynomial

-2(-2)^4 -7(-2)³-3(-2)²-t(-2)-10=0

= -32+56-12+2t-10=0

2+2t=0

t=-2/2

t=-1