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AnnZ [28]
3 years ago
10

Please help school is ending soon and i just need a little bit more help

Mathematics
2 answers:
Dovator [93]3 years ago
4 0

Answer:

41

Step-by-step explanation:

Vesna [10]3 years ago
3 0
2x+20+2x-4=180
4x+16=180
-16. -16
4x= 164
/4. /4
X= 41
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defon
I got 3x^2 + 12x + 4. I recommend you verify my answer, so you have to combine like terms in the first expression then add all the expressions.
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For what value of x is (2x^2+8x)/(x+4)(x^2-9) undefined?
irakobra [83]

Answer:

The value at x =3 is undefined for the given expression

Step-by-step explanation:

Given expression is \frac{2x^2+8x}{(x+4)(x^2-9)}

To find for what value of x is undefined in the given expression :

\frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{2x(x+4)}{(x+4)(x^2-9)}

=\frac{2x}{x^2-9}

\frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{2x}{x^2-9}

If we put x=3 in the above expression we get

\frac{2x}{x^2-9)}=\frac{2(3)}{3^2-9}

=\frac{6}{9-9}

=\frac{6}{0}

Therefore \frac{2x^2+8x}{(x+4)(x^2-9)}=\frac{6}{0}

The value at x =3 is undefined for the given expression

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3 years ago
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Answer:

1

Step-by-step explanation:

a)2 times 1 and then times 2 become (2+4) then 6 ÷ 6 (because 2 plus 4)

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3 years ago
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