Tony believes that x = -9 is a root of the polynomial x2 + 13x + 36. erika, however, believes that x = 4 is a root of the same polynomial. who is correct?

Multiply 36 and x together in such a way that the multiples add up to 13.

36x

9 and 4 add to 13

Divide and 4 by x.

(x + 9) (x + 4)

Set to zero.

(x + 9) (x + 4) = 0

x = -9

x= -4

Based on above, it is determined that Tony is correct.

x = -9, Tony's assumption is correct.

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation:

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13