Question

Factorize:
$2 {x}^{2} - 18$

Answer 1

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Answer 2

Hey


Equation is :-


2x² - 18


Now ,

Solution :-


2x² - 18


=> 2 ( x² - 9 ) = 0


NoTe :- Here 2 is in multiplication form with rest. equation . When it will change side then it will go in division form .

=> ( x ² - 9 ) = 0 / 2

Here , when we divide 0 by 2 we get 0



=> ( x ) ² - ( 3 ) ² = 0


=> ( x + 3 ) ( x - 3 ) = 0


So

x + 3 = 0


=> x = - 3


and ,


x - 3 = 0


=> x = 3


thanks :)