What is the best way to solve this?

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Anonymous
2016-06-07 05:42:46Post No. 136269
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Anonymous 2016-06-07 05:42:46 Post No. 136269 [Report]

What is the best way to solve this?

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Pratai Siog 2016-06-07 09:42:21 Post No.136379
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Pratai Siog 2016-06-07 09:42:21 Post No.136379 [Report]

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>>136269
Substitute x and simplyfie keeping all mathematic rules

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Pratai Siog 2016-06-07 09:51:13 Post No.136380
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Pratai Siog 2016-06-07 09:51:13 Post No.136380 [Report]

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Pratai Siog 2016-06-07 09:52:19 Post No.136381
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Pratai Siog 2016-06-07 09:52:19 Post No.136381 [Report]

>>136269
>>136379
>>136380
In conclusion the equation is true for both x = 2 and -2

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Anonymous 2016-06-07 10:31:56 Post No.136385
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Anonymous 2016-06-07 10:31:56 Post No.136385 [Report]

>>136379
>>136380
>>136381
Yes, but can you reach the conclusion x=2,-2 without knowing them?

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Anonymous 2016-06-07 14:36:58 Post No.136456
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Anonymous 2016-06-07 14:36:58 Post No.136456 [Report]

>>136385
you can find -2 as a solution easily by looking for zeroes. Graphing the function could lead you to the conclusion that 2 is another solution via inspection and then educated guess.

algebraically finding 2 seems tough

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Anonymous 2016-06-07 16:33:12 Post No.136484
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Anonymous 2016-06-07 16:33:12 Post No.136484 [Report]

>>136380

This one is incorrect...
The equation comes down to -4=0 which is false.