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Simora [160]
3 years ago
14

In which expression should the exponents be multiplied?

Mathematics
1 answer:
gulaghasi [49]3 years ago
8 0
If we have the same base, we can do this:
(1/3)^4*(1/3)*7 = (1/3)^(4+7) = (1/3)^11
3^7/3^15 = (3^7)*(3*(-15)) = 3^(7 + (-15)) = 3^(-8) = 1/(3^8)
4^5*4^2 = 4^(5+2) = 4^7
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Answer:

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x^2 + x -2=0

It can be written as

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taking (x+2) as common on LHS

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then                 x-1=0 ie x=1

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that is -2,1

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