3 years ago

Simplified form of the expression (x^3+3x^2+6)-(9x^2-5x+7)

Mathematics

1 answer:

JulijaS [17]3 years ago

8 0

$(x^3 + 3x^2 + 6) - (9x^2 - 5x + 7)\\\\x^3 + 3x^2 + 6 - 9x^2 + 5x - 7\\x^3 - 6x^2 + 5x -1$

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Anna007 [38]

Hi!
The correct answer is B, 1.997 • 10^2

This can be found by simply moving the decimal
place over x times (x represents the exponent). For example, if it were 1.12 • 10^2, you’d move your decimal place over 2 places to the right because it is positive (move left if negative).

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3 years ago

A number is multiplied by 8, and that product is added to 2. The sum is equal to the product of 2 and 25. Find the number.

LenKa [72]

Answer: the number = 6

Step-by-step explanation:

Let x be the number.

Set equation according to the information given

2 + 8x = 2 × 25

Simplify by multiplication

2 + 8x = 50

Subtract 2 on both sides

2 + 8x - 2 = 50 - 2

8x = 48

Divide 8 on both sides

8x / 8 = 48 / 8

$\boxed {x=6}$

Hope this helps!! :)

Please let me know if you have any questions

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2 years ago

How many permutations exist of the letters a, b, c, d taken four at a time?

inessss [21]

There are 24 permutations.

The number of permutations of 4 objects taken 4 at a time is given by
4!/(4-4)! = 4!/0! = 4!/1 = 4! = 24

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3 years ago

What is the x-intercept and y-intercept of y=3x^2+6x+5

Eva8 [605]

There is no X But Y is (0,5)

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2 years ago

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grin007 [14]

The y-intercept should be closer to ten.

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3 years ago

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