SOLUTION: Find the real solutions of the equation. Use a calculator to express any solutions rounded to two decimal places. x^4 + (x^2)•sqrt{2}

SOLUTION: Find the real solutions of the equation. Use a calculator to express any solutions rounded to two decimal places. x^4 + (x^2)•sqrt{2} - 2 = 0

Question 1207758: Find the real solutions of the equation. Use a calculator to express any solutions rounded to two decimal places.

x^4 + (x^2)•sqrt{2} - 2 = 0

Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
x^4 + (x^2)•sqrt{2} - 2 = 0
Let x^2 =p
p^2+sqrt(2)p-2 =0
Formula method
a = 1 b= sqrt(2) c = -2
b^2-4ac = 2 +8=10

and
p=x^2
and
x^2 = 0.87 , x^2=-2.29
Continue to find x

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