Answer:
Explanation:
(x+3)(x+5)=x²+5x+3x+15
x²+8x+15 is equivalent to: (x+3)(x+5)
x^2 +8x+15
(X+3)(x+5)
FOIL
first x^2
outer 5x
inner 3x
last 15
Add together
x^2 +5x+3x+15
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