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Shkiper50 [21]
3 years ago
15

Please help explain the steps

Mathematics
1 answer:
Gennadij [26K]3 years ago
3 0

Step-by-step explanation:

3a^2+24a+45=0

×3/3( first ×3)

9a^2+24(3a)+135=0

(3a+15)(3a+9)=0

now /3

3(a+5)(a+3)

a=-5✓

a=-3✓

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