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rusak2 [61]
3 years ago
7

3(a+5) -2(a+a) explain step by step​

Mathematics
1 answer:
Nady [450]3 years ago
8 0

Answer:

-a + 15

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

3(a + 5) - 2(a + a)

<u>Step 2: Simplify</u>

  1. Combine like terms:                    3(a + 5) - 2(2a)
  2. Distribute 3:                                  3a + 15 - 2(2a)
  3. Multiply:                                        3a + 15 - 4a
  4. Combine like terms:                    -a + 15
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Answer:

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Take a look at <span>5x^2 – 34x + 24 = 0.  The last term could have been the result of these different possible muliplications:  1*24, 2*12, 3*8, 4*6.  The leading term is 5, whose factors are 5 and 1.  Thus, possible rational roots would be
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