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Answered by
1
Answer:
-3 and -5/3
Step-by-step explanation:
3x^2+9x+5x+15 = 3x(x+3)+5(x+3) = (3x+5)(x+3) = x= -3,-5/3
Answered by
4
Answer:
3x² + 14x + 15 = 0
3x² + (9x+5x) + 15 = 0
3x(x+3) + 5(x+3) = 0
(x+3)(3x+5)=0
either x = -3 or -5/3
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