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Norma-Jean [14]
2 years ago
8

IF YOU ANSWER ALL OF THIS ILL MARK YOU BRAINLIST NO CAP!

Mathematics
1 answer:
Zielflug [23.3K]2 years ago
6 0
  1. 1) 4 = 16 divided by n
  2. k + 5 = 11
  3. x - 2 = 7
  4. 7 times a = 42
  5. 6 = 1/3 times s
  6. r times 13 = 17
  7. b - 5 = 16
  8. No. It should be 24 = 8 times x
  9. 217 - x = 36
  10. p = 8180 - 6780

Step-by-step explanation: Cause it is

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Answer:

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Step-by-step explanation:

(4x+5)(x-2)

Multiply each term in the first parenthesis by each term in the second (foil)

Step 1: Expand it by writing out each multiplication. I added a picture showing which order to do it. (go in order of green, red, blue, yellow.) (you can remember this as first, outside, inside, last.)

When you expand it'll look like: 4x⋅x+4x⋅-2-5x-5⋅-2

Step 2: Calculate product

4x⋅x+4x⋅-2-5x-5⋅-2 (for the 4x⋅x it would be written like 4x^{2})

   4x^{2}+4x⋅-2-5x-5⋅-2

4x^{2}+4x⋅-2-5x-5⋅-2 (4x⋅-2 becomes -8x) (multiply 4x times -2)

4x^{2}-8x-5x-5⋅-2

4x^{2}-8x-5x-5⋅-2 (-5⋅-2 becomes +10) (multiply -5 times -2)

4x^{2}-8x-5x+10

Step 3: collect like terms

4x^{2}-8x-5x+10 (-8x-5x becomes -13x) (-8x times -5x)

4x^{2}-13x+10 is the most simplified so it should be your final answer

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