31*31= 961 is perfect square but it don't respect the sentence
32*32=1024 is the lowest perfect square formed by 4 digits
The smallest 4-digit number that is a perfect square is 1024, which is the square of 32. Calculating the square of 31 gives 961, a 3-digit number, confirming that 1024 is the first perfect square in the 4-digit range.
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Jawaban:x = -1Penjelasan dengan langkah-langkah:perhatikan persamaannyax + 1 = 0kurangi kedua ruas dengan -1x + 1 = 0 - 1 = -1didapatkan lah hasilnyax = -1