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blondinia [14]
3 years ago
7

PLEASE HELP!! Factor completely. (y^2x) - (y^x) - 20

Mathematics
1 answer:
BartSMP [9]3 years ago
4 0
y^{2x} - y^{x} - 20
y^{2x} + 4y^{x} - 5y^{x} - 20
y^{x}(y^{x}) + y^{x}(4) - 5(y^{x}) - 5(4)
y^{x}(y^{x} + 4) - 5(y^{x} + 4)
(y^{x} - 5)(y^{x} + 4)
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Answer:

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Since all the numbers are being multiplied by each other, one can use the associative property to change the order in which they are multiplied.

5.3 x 10^4 x 4.2 x 10^3

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Either convert back to scientific notation, standard form or keep as it is.

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3 years ago
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