Answer:
2nd option is the correct answer
The zeros are -7 and 3, because g(x) = -(x + 7)(x - 3)
Step-by-step explanation:
[tex]g(x) = - {x}^{2} - 4x + 21 \\ \\ = -[ {x}^{2} + 4x - 21] \\ \\ = -[ {x}^{2} + 7x - 3x - 21]\\ \\ = -[x( x + 7) - 3(x + 7)]\\ \\ = -( x + 7) (x- 3) \\ \\ plug \: g(x) = 0 \\ \\ - (x + 7)(x - 3) = 0 \\ \\ x = - 7 ,\: \: \: x = 3[/tex]
