3 years ago

PLS HELPPPP Solve 3x2 + 18x + 15 = 0 by completing the square. I CANT FIND REAL ANSWER!

Mathematics

2 answers:

Dmitriy789 [7]3 years ago

7 0

Answer:

x = − 1 , − 5

notsponge [240]3 years ago

3 0

Answer:

1.2

Step-by-step explanation:

3x2+18x+15=0

6+18x+15=0

6+18x-15=0-15

6+18x=-15

-6+18x=-15+(-6)

18x=-21

18/18x=21/18

x=1.2

( i might have messed up somewhere if so sorry )

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