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Problem 15 - Entrance Test
Simplify the expression (2x + 5) * (x - 2)
A. 2x^2 - 4x + 5x - 10
B. 2x^2 + x - 10
C. 2x^2 - 4x - 5x - 10
D. 2x^2 - 4x - 5x + 10
Check Answer
Show Solution
Correct: B
To simplify the expression, we use the distributive property (FOIL method): (2x + 5)*(x - 2) = 2x*x + 2x*(-2) + 5*x + 5*(-2) = 2x^2 - 4x + 5x - 10 = 2x^2 + x - 10.