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Mathematics, 10.06.2021 19:50 ninjaerik4

The expression 2x+(x-7)^2 is equivalent to x^2+bx+49 for all values of x. what is the value of b?
A. 12
B. -12
C. 14
D. -14

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The expression 2x+(x-7)^2 is equivalent to x^2+bx+49 for all values of x. what is the value of b?
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