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Mathematics, 26.04.2021 21:50 jaileen84

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