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lapo4ka [179]
2 years ago
9

What’s (X-4) (x+5) I don’t get it someone help

Mathematics
2 answers:
Marianna [84]2 years ago
8 0
Heya! I am going to show you something step by step, I hope this helps you hun.

<span>=<span><span>(<span>x+<span>−4</span></span>)</span><span>(<span>x+5</span>)</span></span></span><span>

=<span><span><span><span><span>(x)</span><span>(x)</span></span>+<span><span>(x)</span><span>(5)</span></span></span>+<span><span>(<span>−4</span>)</span><span>(x)</span></span></span>+<span><span>(<span>−4</span>)</span><span>(5)</span></span></span></span><span>

=<span><span><span><span>x2</span>+<span>5x</span></span>−<span>4x</span></span>−20</span></span><span>

=<span><span><span>x2</span>+x</span>−<span>20

(The 2 is to the second power between.) 

Please message me for further help! - Hannah</span></span></span>
Flauer [41]2 years ago
5 0
You have to find out what x is because x is an imaginary number
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Enter an expression equivalent to (3x^2+2y^2-3x) + (2x^2+y^2-2x) - (x^2 + 3y^2 +x)
11111nata11111 [884]

Answer:

4x² - 6x

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

(3x² + 2y² - 3x) + (2x² + y² - 2x) - (x² + 3y² + x)

<u>Step 2: Simplify</u>

  1. [Distributive Property] Distribute negative:                                                    3x² + 2y² - 3x + 2x² + y² - 2x - x² - 3y² - x
  2. Combine like terms (x²):                                                                                   4x² + 2y² - 3x + y² - 2x - 3y² - x
  3. Combine like terms (y²):                                                                                   4x² - 3x - 2x - x
  4. Combine like terms (x):                                                                                    4x² - 6x
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2 years ago
Solve the following equation. | x + 3 | = 4
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Answer:

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Step-by-step explanation:

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