exam Maths Puzzle Numerical Ability

Yuri has a board that is 98in. long. He wishes to cut the board into two pieces so that one piece will be 10in. longer than the other. What should the length of each piece be?

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Hi!

My equation states:

(3-5i)+(4+3i)
can someone please help me with this problem:

What is the result of x^4 + 4x^3 + 6x^2 + 4x + 1 divided by x + 1?