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NISA [10]
3 years ago
14

(x​²​y−3y²+5xy​²​​ )−(−x​²y+3xy​²​​ −3y​² )

Mathematics
1 answer:
KATRIN_1 [288]3 years ago
6 0

Answer:

=2xy²+2x²y

Step-by-step explanation:

Delete the parenthesis of both operations.

= x²y - 3y² + 5xy² + x²y - 3xy² - 3y²

Then you have to make the simplification

= 2xy²+2x²y

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vesna_86 [32]
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Given the polynomial 2x3 + 18x2 − 18x − 162, what is the value of the coefficient 'k' in the factored form?2x3 + 18x2 − 18x − 16
s344n2d4d5 [400]

Answer:

k=3

Step-by-step explanation:

Let

f(x)=2x^3+18x^2-18x-162

We factor 2 to obtain;

f(x)=2(x^3+9x^2-9x-81)

We factor the polynomial within the parenthesis by grouping.

f(x)=2(x^2(x+9)-9(x+9)

f(x)=2(x^2-9)(x+9)

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We apply difference of two squares on the second factor: x^2-3^2=(x-3)(x+3)

f(x)=2(x+3)(x-3)(x+9)

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6 0
3 years ago
Given right triangle ABC, what is the value of tan(A)?
Blababa [14]

Answer:

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Step-by-step explanation:

Tan θ = opposite ÷ adjacent

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5 0
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