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3 years ago

Which statement shows how the product of (x + 7)2 demonstrates the closure property of multiplication?

Mathematics

2 answers:

Illusion [34]3 years ago

7 0

The true statement that show the closure property of multiplication :

<h3>a. x² + 14x + 49 is a polynomial</h3>

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<h3>Further explanation</h3>

<em>If equation ax³ + bx² + cx + d = 0 has roots x₁ , x₂ , and x₃ then</em>

$x_1 + x_2 + x_3 = - \frac{b}{a}$

$x_1 x_2 + x_1 x_3 + x_2 x_3 = \frac{c}{a}$

$x_1 x_2 x_3 = - \frac{d}{a}$

Let us now tackle the problem!

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This problem is about Polynomial.

$(x + 7)^2 = (x + 7)(x + 7)$

$(x + 7)^2 = x^2 + 7x + 7x + 7(7)$

$(x + 7)^2 = x^2 + 14x + 49$

$x^2 + 14x + 49$ is a polynomial.

$x + 7$ is polynomial.

It demonstrates the closure property of multiplication.

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<h3>Conclusion:</h3>

<em>The true statement that show how the product of (x + 7)² demonstrates the closure property of multiplication:</em>

<h3>a. x² + 14x + 49 is a polynomial</h3>

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<h3>Learn more</h3>

Solving Quadratic Equations by Factoring : brainly.com/question/12182022
Determine the Discriminant : brainly.com/question/4600943
Formula of Quadratic Equations : brainly.com/question/3776858

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<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Polynomial

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Keywords: Quadratic , Equation , Discriminant , Real , Number

#LearnWithBrainly

Tasya [4]3 years ago

7 0

answer:

a. x2 + 14x + 49 is a polynomial

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$\begin{gathered} -2X+Y-2Z=-8 \\ 7X+Y+Z=-1 \\ 5X+2Y-Z=-9 \end{gathered}$

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$\begin{gathered} \frac{-9Y+12Z-63}{5}=-1 \\ \frac{9Y-12Z+18}{5}=-8 \end{gathered}$

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1 year ago

02:42:33

jeyben [28]

Answer: -10

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3 years ago

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poizon [28]

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Answer:

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Step-by-step explanation:

<u>Given</u>:

$1625 is invested at an annual rate of 1.95% compounded quarterly for 5 years

<u>Find</u>:

the ending balance

<u>Solution</u>:

The compound interest formula applies.

FV = P(1 +r/n)^(nt) . . . Principal P at rate r for t years, compounded n per year

FV = $1625(1 +0.0195/4)^(4·5) = $1625(1.004875^20) ≈ $1790.99

The account ending balance would be $1790.99.

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