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asambeis [7]
3 years ago
9

Find the value of c that makes each trinomial a perfect square. x² + 3x+c

Mathematics
2 answers:
WINSTONCH [101]3 years ago
8 0

Answer:

2

2

Step-by-step explanation:

balu736 [363]3 years ago
3 0

Answer:

2

Step-by-step explanation:

Plug in 2 for c in the equation:

x² + 3x + 2

x              2

x              1

(x + 2)(x + 1)

Check. Use the FOIL method:

(x)(x) = x²

(x)(1) = x

(2)(x) = 2x

(2)(1) = 2

x² + x + 2x + 2

Combine like terms:

x² + (x + 2x) + 2

x² + (3x) + 2

2 can be a answer for c.

~

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