exam Maths Puzzle Numerical Ability

Factoring Completely: how would you factor a problem like this one, whats the answer? (5x^2 - 10x)

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exam Other Question

Find the length x. express your answer in simplified radical form.

Side 1=10
Side 2=8
Side 3=x Solve the equation by completing the square

x^2 + 4x - 21 = 0