Question

(x-3) ki power 2 minus x ki power 2=

Answer 1

$Given \: (x-3)^{2} - x^{2} \\= [ (x-3) + x ] [ (x-3) - x ]$

/* By algebraic identity */

$\boxed { \pink { a^{2} - b^{2} = ( a + b )( a - b ) }}$

$= ( x - 3 + x )( x - 3 - x ) \\= (2x - 3)( -3)$

Therefore.,

$\red{ (x-3)^{2} - x^{2}} \green { = (-3)(2x-3) }$

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