Question

B) x(x – 3) + (x + 1)(x + 4);
г) (c + 2) - (c + 3)(c – 3).​

Answer 1

Ответ:

В)x(x – 3) + (x + 1)(x + 4)

$x {}^{2} - 3x + x {}^{2} + 4x + x + 4$

$2 {x}^{2} + 2x + 4$

г)(c + 2) - (c + 3)(c – 3).

$c + 2 - (c {}^{2} - 9)$

$c + 2 - c {}^{2} + 9$

$c + 11 - c {}^{2}$

$- c {}^{2} + c + 11$