Question

${x}^{2} - 22x - 23$
${9x}^{2} - 30x + 25$
${3x}^{2} - 14x + 16$
Помогите решить​

Answer 1

1.

$x {}^{2} + x - 23x - 23$

$x \times (x + 1) - 23 \times (x + 1)$

$(x + 1) \times (x - 23)$

2.

$3 {}^{2}x {}^{2} - 2 \times 3x \times 5 + 5 {}^{2}$

$(3x) {}^{2} - 2 \times 3x \times 5 + 5 {}^{2}$

$(3x - 5) {}^{2}$

3.

$3 {x}^{2} - 6x - 8x + 16$

$3x \times (x - 2) - 8 \times (x - 2)$

$(x - 2) \times (3x - 8)$