Question

Find the value of c such that the expression is a perfect-square trinomial.
x2 +16x+c
(Simplify your answer. Type an integer or a fraction.)

Answer 1

Answer:

C = 64

Step-by-step explanation:

${x}^{2} + 16x + c \\ = {x}^{2} + 2.8.x + {8}^{2} \\ = {x}^{2} + 2.8.x + 64 \\ \huge \red{ \boxed{ \implies \: c = 64}}$