Question

3x³+5y²+9x³-15y³ plz solve this problem is so difficult

Answer 1

$\huge\mathfrak{\underline{\underline{Explanation:}}}$

$\sf{3x{}^{3}+5y{}^{3}+9x{}^{3}-15y{}^{3}}$

$\sf{ 3x{}^{3}+9x{}^{3}-5y{}^{3}-15y{}^{3}}$

$\sf{3x{}^{3}(1+3)-5y{}^{3}(1+3)}$

$\sf{(1+3) (3x{}^{3}-5y{}^{3})}$

$\sf{(1+3) (3x-5y)(3x{}^{2}+3x×5y+5y{}^{2})}$

$\sf{(1+3)(3x-5y)(9x{}^{2}+15xy+25y{}^{2})}$