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Write the terms of the sequence '5 xx(1+...

Write the terms of the sequence '5 xx(1+6), 10 xx(2+6), 15 xx(3+6),20 xx(4+6) …...' in the form, first term '5 xx 1(1+6)', second term '5 xx 2(2+6)'
i)Write its algebra.

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