Question

What are the factors of x² + 2x - 3?
1) (x - 1)(x + 3)
2) (x - 2)(x + 2)
3) (x - 2)(x + 3)
4) (x + 1)(x - 3)
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Answer 1

Answer:

answer is : ( x - 2 )( x + 2) option (3)

Answer 2

Answer:

1) ( x - 1 ) ( x + 3 )

Solution :-

x² + 2x - 3

Using sum product pattern

=> x² + 3x - x - 3

Common factor from two pairs

=> x ( x + 3 ) - 1 ( x + 3 )

=> ( x - 1 ) ( x + 3 )

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