EDGE Math 8

Choose the completely factored form of each polynomial.

1.	$x^{2} + 18 x + 81$

(x + 27) (x + 3)

{(x + 9)}^{2}

{(x - 9)}^{2}

none of the choices

Answer: ${(x + 9)}^{2}$

2.	$y^{2} + 5 y - 24$

(y + 8) (y - 3)

(y - 8) (y + 3)

(y - 8) (y - 3)

none of the choices

Answer: $(y + 8) (y - 3)$

3.	$2 z^{2} - z - 3$

(2 z + 1) (z - 3)

(2 z + 3) (z - 1)

(2 z - 3) (z + 1)

none of the choices

Answer: $(2 z - 3) (z + 1)$

4.	${(x + 2)}^{2} - 49$

(x + 15) (x - 3)

(x - 5) (x + 9)

(x - 3) (x + 15)

none of the choicess

Answer: $(x - 5) (x + 9)$

5.	$2 x^{2} - 4 x - 16$

2 (x + 4) (x - 2)

2 (x - 4) (x - 2)

2 (x - 4) (x + 2)

none of the choices

Answer: $2 (x - 4) (x + 2)$

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