Question

Divide -x3-27by -x-3

Answer 1

hello users ....

solution:-
we know that;
a³ + b³ = (a + b) { a² + b² - ab }

here:
-x³ - 27
= - x³ - 3³ 
= - (x³+ 3³)

And
( -x³ - 27 ) / ( -x - 3) = {-(x³ + 3³) } / {- (x + 3) }

= ( x³ + 3³ ) / ( x + 3) 

= { (x + 3) ( x² + 3² - 3x ) } / ( x + 3 )

= ( x² + 9 - 3x ) Answer 

# hope it helps :)

Answer 2

Hey there !
a³ + b³ = (a + b) { a² + b² - ab }

-x³-27/-x-3

=-(x³+27)/-(x+3)

=x³+27/x+3

=(x+3)(x²+9-3x)/x+3

=x²-3x+9

Hope helped !