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Mathematics, 02.03.2021 17:30 carligreen090

The expression 2x + (x-7)^2 is equivalent to x^2 +bx + 49 for all values of x. What is the value of b? Please i need this ASAP

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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...
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