Mathematics, 18.03.2020 05:03 unknown9263

Factor problems 9 - 12 by using the difference of squares method.

9. x^2 – 4

AThis polynomial cannot be factored by using the difference of squares method.
B(x – 2)(x – 2)
C(x – 2)(x – 1)
D(x – 2)(x + 2)
E (x – 1)(x – 4)
F (x + 2)(x + 2)

10. x^2 – 25

A(-x – 5)(x - 5)
BThis polynomial cannot be factored by using the difference of squares method.
C(-x + 5)(x + 5)
D(x – 5)(x + 5)
E (x + 5)(-x - 5)
F (x – 5)(x - 5)

11. 36x^4 – 4x^2

A(6x^2 – 2x)(6x^2 - 2x) = 4x^2(3x - 1)(3x - 1)

B(6x^2 + 2x)(6x^2 + 2x) = 2x^2(3x + 1)(2x + 1)

CThis polynomial cannot be factored by using the difference of squares method.

D(-6x^2 – 2x)(-6x^2 - 2x) = 4x^2(-3x - 1)(-3x - 1)

E (6x^2 – 2x)(6x^2 + 2x) = 4x^2(3x - 1)(3x + 1)

F (-6x^2 + 2x)(6x^2 - 2x) = 2x^2(-3x + 1)(3x - 1)

12. x^2 + 100

A(x + 10)(x – 10)
B(-x + 10)(x – 10)
C(x + 10)(x + 10)
DThis polynomial cannot be factored by using the difference of squares method.
E (x - 10)(x – 10)
F (-x + 10)(-x – 10)

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Factor problems 9 - 12 by using the difference of squares method.

9. x^2 – 4