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svet-max [94.6K]
3 years ago
6

Sergio solved the following equation and found the answer to be x = 2. Which choice represents the best way for Sergio to check

his answer? 4x – 6 = 2
Mathematics
1 answer:
MrMuchimi3 years ago
6 0
The best way for him to check his answer would be to simply plug in the value found for x into the equation. 

4(2) - 6 = 2

8 - 6 = 2

2 = 2
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Answer:

Zeros are x = −2, −3 .

Step-by-step explanation:

Given : f(x) = x² + 5x + 6.

To find : What are the zeroes of f(x).

Solution : We have given that

f(x) = x² + 5x + 6.

To find the zeros of the function we need to set f(x) = 0.

x² + 5x + 6 = 0.

On factoring

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Taking common x from first two term and 2 from last two terms

x ( x + 3) +2 ( x +3) = 0.

On grouping

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