Question

please solve this question

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Answer 1

Answer:

bhgfdsaweerrtjkiujjk

Step-by-step explanation:

Answer 2

Answer:

(i) $9a^{4} + b^{4} + 6a^{2}b^{2}$

(ii) $a^{4} + 1 + 2a^{2}$

Step-by-step explanation:

(i)

$(3a^{2} + b^{2} ) ^{2}$

= $(3a^{2})^{2} + (b^{2})^{2} + 2(3a^{2})(b^{2})$

= $9a^{4} + b^{4} + 6a^{2}b^{2}$

(ii)

$(a^{2} + 1)^{2}$

= $(a^{2})^2 + (1)^{2} + 2(a^{2})(1)$

= $a^{4} + 1 + 2a^{2}$

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