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Airida [17]
3 years ago
11

Heather says that the expressions 4 x minus 2 x plus 8 and 2 left parenthesis x plus 4 right parenthesis are not equivalent beca

use one expression has a term that is subtracted and the other does not. Do you​ agree? Explain.
Mathematics
1 answer:
Alexxx [7]3 years ago
3 0

Yes, Heather is correct. The expressions are not equivalent

<em><u>Solution:</u></em>

Given that,

Heather says, the following expressions are not equivalent

4x - 2x + 8\ and\ 2(x-4)

Because one expression has a term that is subtracted and the other does not

<em><u>Combine the like terms in first expression:</u></em>

4x - 2x + 8 = 2x +8

<em><u>Let us first expand the second expression</u></em>

By distributive property

a(b + c) = ab + bc

Therefore,

2(x-4) = 2x - 8

<em><u>Thus the two expressions are:</u></em>

2x + 8\ and\ 2x-8

Yes both the expressions are not equivalent

Because, in first expression 2x is added to 8

But in second expression, 8 is subtracted from 2x

Thus heather is correct

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