Math, asked by palak2007rajak, 5 months ago

If xy = 20 and (x + y)2 = 70, then x2 + y2 is equal to
its urgent please answer this question fast and please step by step explanation...​

Answers

Answered by biogaming160
2
A biquadratic equation is a 4-degree equation without the terms of degree 1 and 3. To solve a biquadratic equation you have to do a change of variable: z = x2. Then you have to solve the quadratic equation and finally undo the change.
Answered by niteshshaw723
3

Answer:

quadratic equation is the name of the chapter now please answer the question which I have ask

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