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Dmitry_Shevchenko [17]
3 years ago
9

Solve for x. Write both solutions, separated by a comma. 7x2 - 4x - 3=0

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
4 0

Answer:

<h2>x = - 3/7 or x = 1</h2>

Step-by-step explanation:

7x² - 4x - 3 = 0

Rewrite - 4x as a difference

That's

7x² - 7x + 3x - 3 = 0

Factorize the expression

7x( x - 1) + 3 ( x - 1) = 0

(7x + 3)( x - 1 ) = 0

7x + 3 = 0 x - 1 = 0

7x = - 3 x = 1

x = -3/7

The solutions are

x = - 3/7 or x = 1

Hope this helps you

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