Rochelle04
08.07.2020 •
Mathematics
What are the roots of the equation? x^2 − x − 42 = 0 Enter your answers in the boxes. X= X=
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Ответ:
x = -6 and x = 7
Step-by-step explanation:
x² - x - 42 = 0
find two number which
a + b = -1
a*b = -42
a = -7
b = 6
x² - x - 42 = 0
(x-7)(x+6) = 0
x-7 = 0
x = 7
x +6 = 0
x = -6
Ответ:
-6 or 7
Step-by-step explanation:
Ответ:
efwwefwerfwefw
Step-by-step explanation: