Question

1. The number should be added to complete
the square of x4 + 64 is
Ob) 16x
O c) 8x?
a) 4x2
d) -16x2​

Answer 1

Step-by-step explanation:

sorry it is confusing question

Answer 2

Answer:

$16x {}^{2} \: is \: the \: answer.$

Step-by-step explanation:

$x {}^{4} + 64 = (x {}^{2}) {}^{2} + 8 {}^{2}$

$x {}^{4} + 64 + 2(x {}^{2})(8) = (x {}^{2}) {}^{2} + 2(x {}^{2})8 + 8 {}^{2}$

$\: \: \: \: \: \: \: = (x {}^{2}) + (8) {}^{2}$

∴ When 16x^2 is added then the given expression will become a perfect square.

@Genius