Question

( left(x^{2}+8 x+15right)left(x^{2}-8 x+15right) )
( Rightarrowleft(x^{2}+15+8 xright)=frac{left(x^{2}+15-8 xright)}{2} )
( Rightarrowleft(x^{2}+15right)^{2}-(8 x)^{2} )

# IWU11S. JA J UULI 30. Express (x + 8x + 15) (x² - 8x + 15) as a difference of two squares.

Solution