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Gnoma [55]
3 years ago
7

(√3-√5)(√5+√3)/7-2√5

Mathematics
1 answer:
strojnjashka [21]3 years ago
7 0

Answer:

= - 14 - 4√5/ 29

Step-by-step explanation:

(√3-√5)(√5+√3)/7-2√5

= √15 + 3 - 5 - √15/7 - 2√5

= - 2/7 - 2√5

= - 2/7 - 2√5 x 7 + 2√5/7 + 2√5

= - 14 - 4√5/49 + 14√5 - 14√5 - 20

= - 14 - 4√5/ 29

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Answer:

1. 8

2. 4

3a. -6 and -4

3b.  -1/2 and -5

Step-by-step explanation:

3a explanation:

Factor x^2+10x+24

(x+4)(x+6)

Set the factors equal to 0

x + 4 = 0

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3b.

Factor left side of equation.

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Set factors equal to 0.

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<h3><u><em>I</em></u><u><em>nitial considerations</em></u></h3>
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