Question

do it plz it's urgent

Answer 1

let's multiple 176 to all options
176×11
=1936
check it
√1936
=44. then answer is 11

Answer 2

Method 1:
Prime factorization method
prime factorization of 176 is
176=2x2x2x2x11
176=(2x2)x(2x2)x11

here only 11 not in a pair. In a perfect square, every prime factor must be in a pair.
So, that means we have to multiply 176 by 11 to make it a perfect square.

Method 2:
Option method
multiply each option with 176
176X8=1408
176X9=1584
176X4=704
176X11=1936

Where 1936 is a perfect square.

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