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jeka57 [31]
3 years ago
11

Directions: Solve using the FOIL method. Hint: Watch out for any negative signs and follow rules for signed numbers!

Mathematics
2 answers:
Fynjy0 [20]3 years ago
5 0
The solutions for all 15!!
1.x^2+ x - 6
2.x^2 - 8x - 48
3.x^2 + 7x + 12
4.x^2 + 13x + 42
5.x^2 + 17x + 72
6.x^2 - 25
7.x^2 - 9
8.x^2 + 20x + 100
9.x^2 + 10x - 24
10.x^2 + x - 12
11.x^2 + 7x + 10
12.x^2 - 7x + 12
13.x^2 - 49
14.x^2 - 3x - 18
15.x^2 + 5x - 50
There hope it helps!
slamgirl [31]3 years ago
5 0

Solution:

<u>Question 1.</u>

  • (x - 2)(x + 3)
  • => x² + 3x - 2x - 6
  • => x² + x - 6

<u>Question 2.</u>

  • (x + 4)(x - 12)
  • => x² - 12x + 4x - 48
  • => x² - 8x - 48

<u>Question 3.</u>

  • (x + 3)(x + 4)
  • => x² + 4x + 3x + 12
  • => x² + 7x + 12

<u>Question 4.</u>

  • (x + 6)(x + 7)
  • => x² + 7x + 6x + 42
  • => x² + 13x + 42

<u>Question 5.</u>

  • (x + 8)(x + 9)
  • => x² + 9x + 8x + 72
  • => x² + 17x + 72

<u>Question 6.</u>

  • (x - 5)(x + 5)
  • x² + 5x - 5x - 25
  • => x² - 25

<u>Question 7.</u>

  • (x + 3)(x - 3)
  • => x² - 3x + 3x - 9
  • => x² - 9

<u>Question 8.</u>

  • (x + 10)(x + 10)
  • => x² + 10x + 10x + 100
  • => x² + 20x + 100

<u>Question 9.</u>

  • (x - 2)(x + 12)
  • => x² + 12x - 2x - 24
  • => x² + 10x - 24

<u>Question 10.</u>

  • (x + 4)(x - 3)
  • => x² - 3x + 4x - 12
  • => x² + x - 12

<u>Question 11.</u>

  • (x + 5)(x + 2)
  • => x² + 2x + 5x + 10
  • => x² + 7x + 10

<u>Question 12.</u>

  • (x - 3)(x - 4)
  • => x² - 4x - 3x + 12
  • => x² - 7x + 12

<u>Question 13.</u>

  • (x + 7)(x - 7)
  • => x² - 7x + 7x - 49
  • => x² - 49

<u>Question 14.</u>

  • (x - 6)(x + 3)
  • => x² + 3x - 6x - 18
  • => x² - 3x - 18

<u>Question 15.</u>

  • (x + 10)(x - 5)
  • => x² - 5x + 10x - 50
  • => x² + 5x - 50

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==========================================================

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