jessiejohnsonjr123
04.12.2020 •
Mathematics
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Ответ:
Thank you
ps if anyone is good at math please look at my last question I am feeling a little tiny bit stressed jk
and I have no clue how to do it
Step-by-step explanation:
Ответ:
thank you for free points
Ответ:
x = 2 or x = -2
Step-by-step explanation:
5x² - 15 = 5
⇌
5x² = 15 + 5
⇌
5x² = 20
⇌
x² = 20/5 = 4
⇌
x² = 2²
⇌
x² - 2² = 0
⇌
(x - 2)(x + 2) = 0
⇌ we use the zero product property
x - 2 = 0 or x + 2 = 0
⇌
x = 2 or x = -2