mary9590
04.12.2020 •
Mathematics
Where's the Error? Consider the following work. Can you find the error? 2x²y-4x+xy2-3x 2xy+xy2-X
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Ответ:
x=-6
Step-by-step explanation:
2log_(5)(x+1)=2
log_(5)(x+1)^2=log_(5)(5^2)
(x+1)^2=5^2
x^2+2x+1=25
x^2+2x-24=0
delta=100
x1=4
x2=-6