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lesya692 [45]
3 years ago
15

Simplifying algebraic expressions -5 (3n+6)

Mathematics
1 answer:
myrzilka [38]3 years ago
7 0
You would multiply -5 x 3n and -5 x 6. Then you would get -15n - 30, which is your answer.
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I need help plz help me !!
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One number is 7 more than another. The difference between their squares is 161. What are the numbers?
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Let's say the numbers are "a" and "b"

now, we know one of them is 7 more than the other, so hmmm let's say "b" is 7 more than "a", so b = a + 7

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a^2-(a^2+14a+49)=161\implies \underline{a^2-a^2}-14a-49=161
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