Question

1 (x+4)2
2 (x + 4)(x - 1)

Answer 1

Explicación paso a paso:

$1.(x + 4) \times 2 \\ 2x + 4 \times 2 \\ 2x + 8 \\ \\ 2.(x + 4)( x- 1) \\ x \times x - x + 4x - 4 \\ x^{2} - x + 4x - 4 \\ x^{2} + 3x - 4$