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3 years ago

What is the difference of the two polynomials? (9x2 + 8x) – (2x2 + 3x)

Mathematics

2 answers:

Elan Coil [88]3 years ago

8 0

Answer:

(9x² + 8x) - (2x² + 3x)

= 7x² + 5x

Step-by-step explanation:

(9x² + 8x) - (2x² + 3x)

open the bracket

= 9x² + 8x - 2x² - 3x

collect like terms

= 9x² - 2x² + 8x - 3x

= 7x² + 5x

damaskus [11]3 years ago

7 0

(9x^2+8x)-(2x^2+3x)
9x^2+8x-2x^2-3x
7x^2+5x

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2x^2+5x+3/x^2-3x-4 divided by 4x^2+2x-6/x^2-8x+16

Masja [62]

Answer: $\frac{x-4}{2x-2}$

Step-by-step explanation:

$\frac{2x^2+5x+3}{x^2-3x-4}$ divided by $\frac{4x^2+2x-6}{x^2-8x+16}$ is the same thing as multiplying $\frac{2x^2+5x+3}{x^2-3x-4}$ by $\frac{x^2-8x+16}{4x^2+2x-6}$ .

The equation we get is:

$\frac{2x^2+5x+3}{x^2-3x-4}*\frac{x^2-8x+16}{4x^2+2x-6}$

With this equation, we can factor each equation:

$\frac{(x+1)(2x+3)}{(x+1)(x-4)} *\frac{(x-4)(x-4)}{2(x-1)(2x+3)}$

We can cancel out like terms since they would be dividing each other:

$\frac{x-4}{2x-2}$

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3 years ago

Is the sequence arithmetic? 15, 14.5, 14, 13.5, 13,… If so, give the common difference.

scZoUnD [109]

The common difference is -0.5

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3 years ago

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Amiraneli [1.4K]

Answer:

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Step-by-step explanation:

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