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Inga [223]
3 years ago
8

Inga is solving 2x2 + 12x – 3 = 0. Which steps could she use to solve the quadratic equation? Check all that apply.

Mathematics
2 answers:
kompoz [17]3 years ago
8 0
The answers are:
1. <span>2(x2 + 6x + 9) = 3 + 18
2. </span><span>2(x2 + 6x) = 3

Let's take a look at the first choice:
2(x</span>² + 6x + 9) = 3 + 18
Now, we will multiply 2 with every member of the other multiplier on the left side:
2·x² + 2·6x + 2·9 = 3 + 18
2x² + 12x + 18 = 3 + 18
<span>2x² + 12x - 3 = 18 - 18
</span><span>2x² + 12x - 3 = 0
</span>
Let's take a look at the second choice:
2(x²<span> + 6x) = 3
</span><span>Now, we will multiply 2 with every member of the other multiplier on the left side:
</span>2·x² + 2·6x = 3
2x² + 12x = 3
<span>2x² + 12x - 3 = 0</span>
hram777 [196]3 years ago
8 0

Answer:

1,3,4

Step-by-step explanation:

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