32. Here √32 x √32 needs simplifying, and 32 and 32 are equal here. The law √a x √b = √(ab) applies for non-negative a and b. So √32 x √32 = √1024. Since 1024 = 32 x 32 is a perfect square, √1024 = 32. Check: 32 x 32 = 1024, which equals 1024.