kitkat56 kitkat56

22-10-2016
Mathematics

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What's x^4-7x^2+1 ( factorize step-by-step)

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Аноним Аноним

22-10-2016

i hope this helps you

ax^2+bx+c=0

disctirminant =b^2-4ax

x1,2=-b+- square root of disctirminant /2a

a=1 b=-7 c=1

disctirminant =(-7)^2-4.1.1

disctirminant =49-4=45

x1=-(-7)+square root of 45/2.1

x1=7+3 square root of 5/2

x2=-(-7)-square root of 45/2.1

x2=7-3 square root of 5/2

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