If f (x) = 0, that means that f (x) doesn't even depend on 'x' and is always zero. So f (that quadratic) is also zero.
The function f ( x ) = 9 x 2 + 4 x + 9 leads to the quadratic equation 9 x 2 + 4 x + 9 = 0 . Using the quadratic formula reveals that there are no real solutions because the discriminant is negative. Therefore, f ( x ) = 0 has no real values for x .
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Jawaban:biasanya sih ada tes kemampuan siswa kognitif dan non kognitif (biasanya gitu) isi soalnya biasanya dikasih soal mapel ( matematika, IPA, IPS, dan bahasa inggris) dan minat bakat siswa... jadi kurang lebih seperti itu