Разложите на множители
а) mn + m(во второй степени)t + 5n+5mt
б) 64+16+y(во второй степени)

I'm happy that you're my teacher;
I enjoy each lesson you teach.
As my role model you inspire me
To dream and to work and to reach.

With your kindness you get my attention;
Every day you are planting a seed
Of curiosity and motivation
To know and to grow and succeed.

You help me fulfill my potential;
I'm thankful for all that you've done.
I admire you each day, and I just want to say,
As a teacher, you're number one!

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Примеры гуманитарных акций.