exam Maths Puzzle Numerical Ability

Diretions: Decide whether each trinomoial is a perfect square. if it is, factor it.
4x2-20x+25

64u2+72uv +81v2

the 2 after x and u and v is an exponent

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exam Other Question

Solve and graph the solution set. 4x + 8 > 3x + 16 9 (line under the greater than) How do I know if a value is a solution for an inequality and how is this different from determining if a value is a solution to an equation?