Question

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Answer 1

Answer:

(1/5a³+b²)²

Step-by-step explanation:

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Answer 2

Answer:

$\frac{1}{5} {a}^{6} + {b}^{4} + \frac{2}{5} {a}^{3} {b}^{2}$

Step-by-step explanation:

$(a + b) {}^{2} = {a}^{2} + {b}^{2} + 2ab$

$( \frac{1}{5} a {}^{3} ) {}^{2} + (b {}^{2}) {}^{2} + 2( \frac{1}{5} a {}^{3} )( {b}^{2} )$

$\frac{1}{5} {a}^{6} + {b}^{4} + \frac{2}{5} {a}^{3} {b}^{2}$