Question

if the 0 the polynomial X square + 5 x + K is 5 then the value of k is​

Answer 1

Answer:

-50

Step-by-step explanation:

x^2+5x+k=0

(5)^2 +5*5+k=0

25+25+k=0

k=-50

Answer 2

$let \\ p(x) = x ^{2} + 5x + k \\ \\ \\ then\\ p(5) = {5}^{2} + 5(5) + k = 0 \\ \\ 25 +25 + k = 0 \\ 50 + k = 0 \\ k = - 50$