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49x^2 -_x + 16 Can someone help with the missing number
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14 votes
49x^2 -_x + 16

Can someone help with the missing number

User Minhazur
by
4.6k points

2 Answers

3 votes

Answer:

Explanation:

4x² + 28x + 49

4x² + 14x + 14x + 49

2x(2x) + 2x(7) + 7(2x) + 7(7)

2x(2x + 7) + 7(2x + 7)

(2x + 7)(2x + 7)

(2x + 7)²

= 28

User Emelie
by
3.5k points
3 votes

Explanation:

I'm guessing this is competing the perfect square

so it's 56

User Leonti
by
3.6k points
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