Question

1-2x^2 factories the following

Answer 1

1^2-(√2x)^2

a^2-b^2 = (a+b)(a-b)

(1+√2x)(1-√2x)

Answer 2

Hey there!

Answer:


Let y = 1 - 2$x^{2}$


We know that ;


2$x^{2}$ can be
written as :


$(\sqrt{2} x )^{2}$ = $(\sqrt{2})^{2} x^{2}$


$\sqrt{2} × \sqrt{2}$ = 2


Therefore,


y = $( 1 )^{2}$ - $(\sqrt{2}x)^{2}$


Using Identity:

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


y = ( 1 - $\sqrt{2}$x ) ( 1 + $\sqrt{2}$ x)


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