Answer:
x² +2x - 15
Explanation:
(x + 5) ( x - 3 ) =
= x² + 5x - 3x - 15
= x² +2x - 15
hello :
(x + 5) ( x -3 )= x²-3x+5x-15
(x + 5) ( x -3 )= x²+2x-15
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