exam Maths Puzzle Numerical Ability

Find the product: [x - ( 2 + i)][x - (2 - i)].

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exam Other Question

I need to graph this linear equation but I do not understand it. Can you help me? It is 6x+7=-14y Simplify each expression. Use only positive exponents.
(2x^-5 y^4)^3

Note: I left a space in the parenthesses so that you would know that 2x^-5 and y^4 are in the parenthesses.