Question

(4/5x² + y ) (4/5x²+ y) = ?​

Answer 1

Answer:

(46/78)

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Answer 2

Step-by-step explanation:

$( \frac{4}{5} {x}^{2} + y)( \frac{4}{5} {x}^{2} + y) \\ = ( \frac{4}{5} {x}^{2} + y) {}^{2} \\ = ( \frac{4}{5} {x}^{2}) {}^{2} +( y) {}^{2} + 2 \times \frac{4}{5} {x}^{2} \times y \\ = \frac{16}{25} {x}^{4} + {y}^{2} + \frac{8}{5} {x}^{2} y$