jboii11
05.06.2021 •
Mathematics
(x - 2)(x + 1) = 3x - 2
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Ответ:
x=4
Step-by-step explanation:
(x-2)(x+1)=3x-2
x(x+1)-2(x+1)=3x-2
x^2+x-2x-2=3x-2
x^2-x-2=3x-2
x^2=3x+x-2+2
x^2=4x
x^2/x=4
x=4
Ответ:
(x - 2) ( x + 1) = 3x - 2
x² + x - 2x - 2 = 3x - 2
x² + x - 2x - 2 - 3x + 2 = 0
x² - 4x = 0
x ( x - 4 ) = 0
x - 4 = 0/x
x - 4 = 0
x = 4
Ответ:
(h,k)
Step-by-step explanation: