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EleoNora [17]
3 years ago
6

Find c to complete the perfect trinomial x2 + 4x + c

Mathematics
1 answer:
sladkih [1.3K]3 years ago
8 0

Answer:

4

Step-by-step explanation:

I assume that is supposed to be x squared. A perfect trinomial is the product of a perfect square, (x times a number) squared. With these trinomials, you can look at them as: ax squared times bx + c. When a is 1, the fastest way to get c to make a perfect square is to divide b by 2. In this case, it's 4/2 = 2. The last step is to square that number. 2 squared = 4.

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