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belka [17]
3 years ago
14

What is the simplified form of the expression?

Mathematics
2 answers:
AlekseyPX3 years ago
5 0

Answer:

Option B : -8d + 3w

Step-by-step explanation:

We need to know, how is the law of signs, that is:

  • ( + * + ) = +
  • ( - * - ) = +
  • ( + * -) = -
  • ( - * + ) = -

In our case, we have the next

- ( 8d - 3w), <em>applying </em><em>distributive property</em>

( - * + )8d ( - * - )3w , <em>acording </em><em>law of signs</em><em> that is:</em>

⇒<em> - </em>8d + 3w , <em> </em>

Vilka [71]3 years ago
4 0
-(8d - 3w)
-(8d) - (-3w)
-8d + 3w

The answer is B.
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Rewrite x2 − 6x + 7 = 0 in the form (x − a)2 = b, where a and b are integers, to determine the a and b values.
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Answer:

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Step-by-step explanation:

Rewrite x^{2}-6x+7=0 in the form

(x-a)^{2}=b

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To Find:

a = ?

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Solution:

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Which can be written as

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Adding half coefficient of X square on both the side we get

x^{2}-6x+9=-7+9=2 ...................( 1 )

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Substituting in equation 1 we get

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Find the largest value of x that satisfies:<br> log3(x^2)-log3(x+4)=4
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Answer:

Step-by-step explanation:

log3(x^2)-log3(x+4)=4

Log 3(x^2/x+4)=4     -Combine the logs

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