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21 August, 19:59

Kate multiplied two binomials using the distributive property. She made a mistake in one of the steps. Where did she first make a mistake?

(x - 2) (3x + 4)

1. (x - 2) (3x) + (x - 2) (4)

2. (x) (3x) + (2) (3x) + (x) (4) + (2) (4)

3. 3x2 + 6x + 4x + 8

4. 3x2 + 10x + 8

A. Step 2

B. Step 3

C. Step 4

D. Step 1

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Answers (2)
  1. 21 August, 20:12
    0
    step 3
  2. 21 August, 20:28
    0
    If you look carefully then you will find that Negative sign which was in step1, is missing in step2 after applying distributive property.

    so that means step2 is wrong.

    Hence final answer is A. Step 2.
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