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Nuetrik [128]
4 years ago
11

2x(5+3x)-x find the coefficient of x

Mathematics
1 answer:
s344n2d4d5 [400]4 years ago
4 0

To start, we need to distribute

multiply 2x by <em>everything</em> in the parenthesis

2x (5 + 3x) - x

2x × 5 = 10x

2x × 3x = 6x²

now we have...

10x + 6x² - x

<em>simplify </em>

<u>6x² + 9x </u>

the coefficient of x is 9!

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