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4 years ago

15 pts + brainliest to right/best answer

Mathematics

2 answers:

svetlana [45]4 years ago

8 0

Answer:

(2x-5) (2x+5)

Step-by-step explanation:

4x^2 -25

This is the difference of squares

a^2 - b^2 = (a-b) (a+b)

(2x)^2 - 5^2

(2x-5) (2x+5)

ZanzabumX [31]4 years ago

6 0

Rewrite it in the form a^2 - b^2, where a = 2x and b = 5

(2x)^2 - 5^2

Use the Difference o Squares: a^2 - b^2 = (a + b)(a - b)

(2x + 5)(2x - 5)

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The Johnsons’ new swimming pool measures 3x^2-2x+1 ft in length and x+2 ft in width. What is the area of the new swimming pool,

Usimov [2.4K]

Answer:

$3x^3 + 4x^2 -3x + 2$

Step-by-step explanation:

The area of the swimming pool will be equal to $length * width$ .

We know that the length is $3x^2-2x+1$ and the width is $x+2$ .

Therefore we can substitute those into the equation:

$(3x^2-2x+1)(x+2)\\$

Then, we expand the brackets using a grid (attached).

After this, we collect like terms to find the final answer:

$3x^3+6x^2-2x^2-4x+x+2\\3x^3 + 4x^2 -3x + 2$

Our final answer is: $3x^3 + 4x^2 -3x + 2$

8 0

2 years ago

(5x3 + 3x2 - 5x + 4)

yKpoI14uk [10]

Hello there i hope you are having a great day :) Your question : (5x3 + 3x2 - 5x + 4) Answer : 5x^3 + 3x^2 - 5x +4

Hopefully that helps ya ❤

8 0

4 years ago

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bonufazy [111]

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3 years ago

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poizon [28]

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3 years ago

So what is the answer?

Dimas [21]

Answer for what?????

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4 years ago