Mandy86
Add or subtract as indicated.
7  5
A. 12
B. 2
C. 11
D. 3



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lilg132
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lol

mitosuki
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7  5 = 2
B

Mandy86
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7\[7\sqrt{7}5\sqrt{7}\]

lilg132
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take 5 away from 7 what do you get? (use your fingers to help)

Mandy86
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no it didnt work

Tomas.A
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\(\sqrt7(75)\)

mitosuki
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1
2√7

Mandy86
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oops wrong question

Tomas.A
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lol

amistre64
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dw:1323112516020:dw

Mandy86
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\[\sqrt{3}(\sqrt{7}  \sqrt{5})\]

Mandy86
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mutiliply or simply

Mandy86
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do i distrubt the 3

Tomas.A
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4
it's already simplified

Tomas.A
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you can distribute but this form is ok too

Mandy86
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\[3\sqrt{7}+3\sqrt{5}\]

Mandy86
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it says simplify but this is right

Mandy86
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oh its suppose to be minus not add. So its \[\sqrt{27}\sqrt{15}\]