Question

factorization
$9x {}^{2} + 7x - 2 = 0$
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Answer 1

Answer:

-1 and 2/9

Step-by-step explanation:

Let's first write the given equation once again in our solution,

9x² + 7x - 2 = 0

Splitting the middle term appropriately,

9x² + 9x - 2x - 2 = 0

Taking out common factors,

9x ( x + 1 ) - 2 ( x + 1 ) = 0

Again taking out common factors,

( x + 1 ) ( 9x - 2 ) = 0

Now by zero product rule,

x + 1 = 0 or 9x - 2 = 0

x = - 1 or x = 2/9

Answer 2

Step-by-step explanation:

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