2 years ago

This was due yesterday please help

Mathematics

1 answer:

Marianna [84]2 years ago

3 0

Answer: 2.1925153x10 to the 3rd

Step-by-step explanation: hope it helps

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Marysya12 [62]

$x^2+(x+1)^2=61\\ x^2+x^2+2x+1-61=0\\ 2x^2+2x-60=0\ \ /:2\\ x^2+x-30=0\\ \Delta=1^2-4\cdot(-40)=1+120=121\ \ \Rightarrow\ \ \sqrt{\Delta} =11\\ \\ x_1= \frac{-1-11}{2} = \frac{-12}{2} =-6,\ \ \ \ x_2= \frac{-1+11}{2} = \frac{10}{2}=5\\ \\Ans.:x=-6$

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This was due yesterday please help​

This was due yesterday please help