Question

Descompuneti in factori 3x²-7+4​

Answer 1

$3x²-7+4$

$3x {}^{2} - 3$

$3 \times (x {}^{2} - 1)$

$eu \: \: a \: \: folosit \: \: formula \\ a {}^{2} - b {}^{2} = (a - b) \times (a + b)$

$3 \times (x - 1) \times (x + 1)$