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MathematicsMathematics
22 October, 00:29

1. Find the product: (x + 2) (x - 2)

A. x2 - 8

B. 3x2 - 14x - y

C. x2 - 4

D. x2 - 2

2. Factor Completely: x2 - 36

A. (x + 6) (x - 6)

B. (x + 6) (x + 6)

C. (x - 6) (x - 6)

D. Prime

3. Factor Completely: 4x2 - 81

A. (4x - 9) (x + 9)

B. (2x + 9) (2x + 9)

C. (2x + 9) (2x - 9)

D. (2x - 9) (2x - 9)

4. Factor Completely: x2 + 16

A. (x + 4) (x + 4)

B. (x + 4) (x - 4)

C. Prime

D. (x - 4) (x - 4)

5. Factor Completely: 2x2 - 18

A. Prime

B. 2 (x2 - 9)

C. 2 (x + 3) (x - 3)

D. 2 (x + 3) (x + 3)

6. Factor Completely: 3x2 - 21

A. 3 (x2 - 7)

B. 3 (x + 7) (x - 7)

C. 3 (x + 7) (x - 3)

+1
Answers (1)
  1. 22 October, 00:47
    0
    Hello,

    1) (x+2) (x-2) = x²-4 answer C

    2) x²-36 = (x-6) (x+6) answser A

    3) 4x²-81 = (2x) ²-9² = (2x+9) (2x-9) answer C

    4) x²+16 prime answer C

    5)) 2x²-18=2 (x²-9) = 2 (x-3) (x+3) answer C

    6) 3x²-21=3 (x²-7) anwser A
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Home » Mathematics » 1. Find the product: (x + 2) (x - 2) A. x2 - 8 B. 3x2 - 14x - y C. x2 - 4 D. x2 - 2 2. Factor Completely: x2 - 36 A. (x + 6) (x - 6) B. (x + 6) (x + 6) C. (x - 6) (x - 6) D. Prime 3. Factor Completely: 4x2 - 81 A. (4x - 9) (x + 9) B.
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