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Ann [662]
3 years ago
7

Factor 14x2+6x-7x-3 by grouping

Mathematics
1 answer:
QveST [7]3 years ago
5 0

14x^2+6x-7x-3

14x^-7x  +6x-3

group

7x(2x-1) +3(2x-1)

factor out (2x-1)


(2x-1)(7x+3)

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Find the value of the variables ​
Vedmedyk [2.9K]

Answer:

x = 15

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Step-by-step explanation:

For right angle x^2 + z^2 = (9 + 16)^2 => x^2 + z^2 = 625

then z^2 = y^2 + 16^2 => y^2 = z^2 - 256

and x^2 = y^2 + 9^2 => y^2 = x^2 - 81

so z^2 - 256 = x^2 - 81

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replace z^2 = x^2 + 175 into the first equation

x^2 + (x^2 + 175) = 625

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x = 15

If x = 15 => 15^2 + z^2 = 625 => z^2 = 400 => z = 20

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2 years ago
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Vesnalui [34]

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Step-by-step explanation:

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3 years ago
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