1.

(x + 5) (x - 3) = ?A. x2 + 5x - 15B. x2 - 3x - 15C. x2 + 2x + 15D. x2 + 2x - 15

Answer»

After solving the equation, 

we get,

(x + 5)(x – 3) = x(x – 3) + 5(x – 3) 

= x2 – 3x + 5x – 15 

= x2 + 2x – 15



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