doriemaeh doriemaeh

24-11-2020
Mathematics

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The expression 2x² + ax is equivalent to x (2x + 7) for some constant a. What is the value of a ?

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meowmeow223334 meowmeow223334

24-11-2020

2x^2 + ax = x(2x+ 7)
2x^2 + ax = 2x^2 + 7x
Subtract 2x^2 from both sides
ax = 7x
a = 7

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