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26 April, 08:12

for the equation 2x (3x+5) + 3 (3x+5) = ax^2+bx+c, if this equation is true for all values of x, what is the value of b if a, b, and c are constants

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  1. 26 April, 11:47
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    b=19

    Step-by-step explanation:

    2x (3x+5) + 3 (3x+5) = ax2 + bx+c

    by expansion,

    6x2 + 10x + 9x+15=6x2 + 19x + 15
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