Question

descompuneti in factori x^2+4x+4-16y^2

Answer 1

X²+4x+4-16y²=

=(x+2)²-16y²

=(x+2-4y)(x+2+4y)

Answer 2

$x {}^{2} + 4x + 4 - 16y {}^{2} = (x + 2) {}^{2} - 16y {}^{2} = (x + 2 - 4y)(x + 2 + 4y)$