2 years ago

How many, and what type of, solutions does 4x² + 12x + 9 = 0 have?

2 answers:

7 0

1 rational solution

4x² + 12x + 9 = 0
(2x+3)²=0
2x + 3 =0
2x +3 -3 = 0-3
2x = -3
2x/x = -3/2
x = -3/2

3 0

The answer is 1 rational solution. :) Took the test and got it correct.

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