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Sagot :

Answer:

B

Step-by-step explanation:

-(x^2+4x-21)

If you were to factor this, it would be,

-(x+7)(x-3)

Please mark me Brainliest

Hrishii

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]

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