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igor_vitrenko [27]
4 years ago
11

Write the expression 5x+4x^2(2x+7)-6x^2-9x as a polynomial in standard form

Mathematics
2 answers:
Lerok [7]4 years ago
4 0

Answer:

8x^3 + 22x^2 - 4x

Step-by-step explanation:

5x+4x^2(2x+7)-6x^2-9x

Open the bracket

5x + 8x^3 + 28x^2 - 6x^2 - 9x

= 8x^3 + 28x^2 - 6x^2 - 9x + 5x

= 8x^3 + 22x^2 - 4x

In standard form, the polynomial 5x+4x^2(2x+7)-6x^2-9x is 8x^3 + 22x^2 - 4x

Sever21 [200]4 years ago
3 0
5x + 4x²(2x + 7) - 6x² - 9x
5x + 8x³ + 28x² - 6x² - 9x

8x³ + 22x² - 4x

This can be simplified to:

2x(4x² + 11x - 2)

I don't know which of those answers you are looking for. 
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3 years ago
Find the midpoint of the segment with the following endpoints (-5,-1) and (1,9)
Bogdan [553]

Answer:

(x1,y1),(x2,y2)

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your answer:

(-2,4)

Step-by-step explanation:

4 0
3 years ago
The function, f(n) = 70n – 400, models the profit of the instructor of a guitar class per month, where n is
aleksandr82 [10.1K]

Atleast 6 students must be enrolled to make a profit and 20 student are needed to make $1,000.00 profit per month.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Given the function:

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For a profit of $1000:

70n - 400 = 1000

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Atleast 6 students must be enrolled to make a profit and 20 student are needed to make $1,000.00 profit per month.

Find out more on equation at: brainly.com/question/2972832

5 0
2 years ago
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Ajajjwususjdbdndkdlflfpc
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3 years ago
Which number is between 0.6 and 7/9 ?
podryga [215]
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second number 7/9 = 0.77

If we take other number as x, it would be between 0.6 and 0.77
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5 0
3 years ago
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