Question

(x²+x-2) (x²-x+2 simlify

Answer 1

$prob \: is \: solved$

Answer 2

( X² + x - 2 ) ( x²- x + 2 )

= { x²+ ( x - 2 ) } { x² - ( x - 2 ) }

[ (a + b)(a - b ) = a²- b²]

= x² - ( x -2)²

= x² - ( x² - 2 × X × 2 + 2²)

= x² - ( x² - 4x + 4 )

= x² - x² + 4x - 4

Therefore 4x - 4 = 0

4x = 4

x = 4/4

x = 1