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Jobisdone [24]
3 years ago
11

subtracting 2x^2+4x-5 from 7x^2+x+9 results in a polynomial. after substracting 4x^2 - 3x from this polynomial, the difference i

s ________?​

Mathematics
1 answer:
Alecsey [184]3 years ago
3 0

Answer:

The difference is 14.

Step-by-step explanation:

We are to subtract 3x² + 4x - 5 from 7x² + x + 9.

⇒ 7x² + x + 9 - (3x² + 4x - 5)

= 7x² + x + 9 - 3x² - 4x + 5

= (7 - 3)x² + (1 - 4)x + 9 + 5

= 4x² - 3x + 14

Now we subract 4x² - 3x from the above polynomial.

⇒ 4x² - 3x + 14 - (4x² - 3x)

= 4x² - 3x + 14 - 4x² + 3x

= (4 - 4)x² + (3 - 3)x + 14

= 14 which is the required difference.

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<h3>How to determine the area of triangle ABC</h3>

Start by drawing the triangle (see attachment)

Next, calculate the measure of angle B using the following tangent ratio

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Read more about areas at:

brainly.com/question/24487155

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Step-by-step explanation:

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