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4 years ago

Simplify the expression x^2+5x+4/x^2+3x-4*x^2-2x+1/x^2-1

Mathematics

1 answer:

AysviL [449]4 years ago

3 0

Answer:

Simplifying

(2x2 + -3x + 1)(x + -2)

Reorder the terms:

(1 + -3x + 2x2)(x + -2)

Reorder the terms:

(1 + -3x + 2x2)(-2 + x)

Multiply (1 + -3x + 2x2) * (-2 + x)

(1(-2 + x) + -3x * (-2 + x) + 2x2 * (-2 + x))

((-2 * 1 + x * 1) + -3x * (-2 + x) + 2x2 * (-2 + x))

((-2 + 1x) + -3x * (-2 + x) + 2x2 * (-2 + x))

(-2 + 1x + (-2 * -3x + x * -3x) + 2x2 * (-2 + x))

(-2 + 1x + (6x + -3x2) + 2x2 * (-2 + x))

(-2 + 1x + 6x + -3x2 + (-2 * 2x2 + x * 2x2))

(-2 + 1x + 6x + -3x2 + (-4x2 + 2x3))

Combine like terms: 1x + 6x = 7x

(-2 + 7x + -3x2 + -4x2 + 2x3)

Combine like terms: -3x2 + -4x2 = -7x2

(-2 + 7x + -7x2 + 2x3)

Step-by-step explanation:

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3 years ago

makkiz [27]

Answer:

Rs 1350

Step-by-step explanation:

An average of 5 shirts is Rs 750

The total amount of the 5 shirts is 750×5

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The price of 3 shirts is Rs 2400

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3 years ago

Fourteen out of 20 teens said they eat breakfast every morning what is a reasonable prediction for the number of teens out of 12

Oksi-84 [34.3K]

Answer:

896

Step-by-step explanation:

14 of 20 teens eats breakfast every morning.

The percentage of those who eat breakfast every morning

= 14/20 x 100%

= 0.7 x 100%

= 70%

So, 70% of 20 teens eat breakfast every morning.

The reasonable prediction for the number of teens that eats breakfast every morning from 1280 teens will be 70% of 1280.

70/100 x 1280

0.7 x 1280

896

The prediction would be 896 out of 1280 teens eats breakfast every morning

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4 years ago

5894 divided by 14 step by step<br><br> (Please help. I just wanna know if I’m doing this right)

san4es73 [151]

Answer:

421

Step-by-step explanation:

5894 divided by 14 in decimal = 421 • 5894 divided by 14 in fraction = 5894/14• 5894 divided by 14 in percentage= 42100%

YOUR WELCOME :)))

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3 years ago