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ehidna [41]
4 years ago
5

Will factored 7x^67x 6 7, x, start superscript, 6, end superscript as (3x^2)(4x^4)(3x 2 )(4x 4 )left parenthesis, 3, x, squared,

right parenthesis, left parenthesis, 4, x, start superscript, 4, end superscript, right parenthesis. Olivia factored 7x^67x 6 7, x, start superscript, 6, end superscript as (7x^2)(x^3)(7x 2 )(x 3 )left parenthesis, 7, x, squared, right parenthesis, left parenthesis, x, cubed, right parenthesis. Which of them factored 7x^67x 6 7, x, start superscript, 6, end superscript correctly?
Mathematics
2 answers:
Dafna11 [192]4 years ago
6 0

Answer:

None of them factored 7x^6 correctly.

Question:

Will factored 7x^6 as (3x^2)(4x^4), Olivia factored 7x^6 as (7x^2)(x^3). Which of them factored 7x^6 correctly?

Step-by-step explanation:

Given;

Will factored 7x^6 as (3x^2)(4x^4)

To verify;

(3x^2)(4x^4) = 3 × 4 × x^2 × x^4 = 12 × x^(2+4) = 12x^6

(3x^2)(4x^4) = 12x^6

Wrong

Olivia factored 7x^6 as (7x^2)(x^3)

To verify;

(7x^2)(x^3) = 7 × x^2 × x^3 = 7 × x^(2+3) = 7x^5

(7x^2)(x^3) = 7x^5

Wrong

Both Will and Olivia are wrong. So,

None of them factored 7x^6 correctly.

FromTheMoon [43]4 years ago
5 0

Answer:

None of them factored 7x^6 correctly.

Step-by-step explanation:

  • Will factored 7x^6 as (3x^2)(4x^4)
  • Olivia Factored 7x^6 as (7x^2)(x^3)

We are to determine which of them factored correctly. We will do this by backward expansion of the factored terms.

For Will

  • (3x^2)(4x^4)=12x^8

For Olivia

  • (7x^2)(x^3)=7x^5

We conclude therefore that <u>none factored it correctly.</u>

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Friendship’s soccer team purchased uniforms and equipment for a total of $912. The equipment cost $612 and the uniforms cost $25
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On paper, use the completing the square method to solve the equation x^2 + 16x + 2. Can anyone help me with this?
scoray [572]

Answer:

x = -8 ± √62

Step-by-step explanation:

An equation needs an equals sign.  I assume the expression equals zero?

x² + 16x + 2 = 0

To complete the square, start by making the leading coefficient 1 (which it already is).

Next, take half of the b coefficient, square it, and add the result to both sides.

(16/2)² = 8² = 64

x² + 16x + 64 + 2 = 64

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(x + 8)² + 2 = 64

Solve for x:

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3 years ago
Determine whether 81a2 − 25z6 is a difference of two squares. If so, factor it. If not, explain why.
aev [14]

81 a² - 25 z^{6} is a difference of two squares and its factors are (9a + 5z³) and (9a - 5z³)

Step-by-step explanation:

The difference of two squares is a binomial of two terms each term is a square and the sign between the two terms is (-), its factorization is the product of two identical binomials with different middle signs

  • a² - b² is a difference of two squares
  • a² - b² = (a + b)(a - b)

∵ The binomial is 81 a² - 25 z^{6}

∵ \sqrt{81} = 9

∵ \sqrt{a^{2} } = a

∴ \sqrt{81a^{2}}=9a

∵ \sqrt{25} = 5

∵ \sqrt{z^{6}} = z³

∴ \sqrt{25z^{6}}=5z^{3}

- The two terms have square root

∵ The sign between them is (-)

∴ 81 a² - 25 z^{6}  is a difference of two squares

∵ Its factorization is two identical brackets with different

   middle signs

∵ 81 a² = 9a × 9a

∵ 25 z^{6} = 5z³ × 5z³

- The terms of the two brackets are 9a and 5z³

∴ 81 a² - 25 z^{6} = (9a + 5z³)(9a - 5z³)

81 a² - 25 z^{6} is a difference of two squares and its factors are (9a + 5z³) and (9a - 5z³)

Learn more:

You can learn more about the difference of two squares in brainly.com/question/1414397

#LearnwithBrainly

7 0
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