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Viefleur [7K]
3 years ago
14

Solve by co pelting the square 4x^2-16x+5=-2

Mathematics
1 answer:
Paha777 [63]3 years ago
5 0

Answer:

x = 1/2,  7/2

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

Equality Properties

<u>Algebra I</u>

  • Completing the Square: (b/2)²
  • Factoring

Step-by-step explanation:

<u>Step 1: Define</u>

4x² - 16x + 5 = -2

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Isolate <em>x </em>terms:                    4x² - 16x = -7
  2. Factor GCF:                         4(x² - 4x) = -7
  3. Isolate <em>x </em>terms:                    x² - 4x = -7/4
  4. Complete the Square:        x² - 4x + 4 = -7/4 + 4
  5. Simplify:                               (x - 2)² = 9/4
  6. Square root both sides:      x - 2 = ±3/2
  7. Isolate <em>x</em>:                              x = 2 ± 3/2
  8. Evaluate:                              x = 1/2,  7/2
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- 6x² - 2x + 1

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2 years ago
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andreev551 [17]

Answer:

5x + 32 < 50

Step-by-step explanation:

On a particular airline, bags checked in must weigh less than 50 pounds. Betty packed 32 pounds of clothes and five gifts that weigh the same amount.

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What is the equation of the line that passes through the origin and is perpendicular to the line 4x+3y=6
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The slope-intercept form of a line can be written as:

y = mx + b

Where m is the slope of the graph of the line and b is the y-intercept.

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0 = m(0) + b

Solving for b:

b = 0.

Thus, the equation of the line reduces to:

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We only need to find the value of the slope.

That is where we need the second data. Our line is perpendicular to the line of equation 4x + 3y = 6.

Solving for y:

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We must recall that if two lines of slopes m1 and m2 are perpendicular, then:

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Substituting the value of m1 and solving for m2:

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y=\frac{3}{4}x

From this last equation, we need to find the general form of the line.

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Reorder:

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