Mathematics, 08.06.2021 22:50, shahidcade2721

If x^4-y^4=45 and x^2-y^2=5, then x^2+y^2=?
A. 9
B. 15
C. 20
D. 40
E. 50

Answers: 3

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If x^4-y^4=45 and x^2-y^2=5, then x^2+y^2=?
A. 9
B. 15
C. 20
D. 40
E....

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If x^4-y^4=45 and x^2-y^2=5, then x^2+y^2=? A. 9 B. 15 C. 20 D. 40 E. 50

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If x^4-y^4=45 and x^2-y^2=5, then x^2+y^2=?
A. 9
B. 15
C. 20
D. 40
E. 50