Question

a cubed plus B-Cubed Upon A + B​

Answer 1

Answer:

The algebraic formula is

(a ³ + b ³) = (a+b)(a2-ab+b2)

Eg.

x³ + 2 ³   = (x + 3) ((x)² - x(3) + 3 ²)

               = (x+3) (x² - 3x + 9)

There fore the expansion of x³ + 2 ³ is (x+3) (x² - 3x + 9)

Answer 2

Answer:

${a}^{2} - ab + {b}^{2}$

$\frac{(a + b) ( {a}^{2} - ab + {b)}^{2} }{(a + b)}$

=

$\frac{ {a}^{3} + {b}^{3} }{a + b}$