Which expression is equivalent to this polynomial? x2 + 64

Answers to choose from-

(x + 8)2

(x + 8i)(x − 8i)

(x + 8i)2

(x + 16)(x + 4)

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x

c is the correct answer

step-by-step explanation: