Question

solve it x^2+x-2 is equal to ?

Answer 1

hi
x² + x - 2
= x² + ( 2 - 1 )x - 2
= x² + 2x - x - 2
= x( x + 2 )-1( x + 2 )
= ( x + 2 ) ( x - 1 )
either
x - 1 = 0 or x + 2 = 0
=> x = 1 or x = - 2
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Answer 2

Hello !!!!!!

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x² + x - 2

=> x² + ( 2 - 1 ) x - 2

=> x² + 2x - x - 2

=> x ( x + 2 ) - 1 ( x + 2 )

=> ( x + 2 ) ( x - 1 )

=> x = 1 or x = -2