Question

${x}^{2} + 2x - 3$
Solve this sum ​

Answer 1

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To factor , consider the factors of the constant term - 3 which sum to give the coefficient of the x term +2

factors of - 3 are ± (1 , 3 )

The required factors are +3 and - 1 ,as they sum to +2.

⇒x²+2x−3=(x+3)(x−1)

This may be confirmed by distributing the brackets.

Answer 2

Explanation:

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