exam Maths Puzzle Numerical Ability

Simplify the product : (x/2-2/5)(2/5-x/2)-x^2+2x

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exam Other Question

solve each absolute value equation or inequality ANALYTICALLY using a distance statement report your solution using equality or inequality notation.

a. (w and 10 are in absolut please, help me to answer the quastion: explain the difference between simplifying an expression and solving an equation.