Question

Expand using the suitable identity:(-2x + 5y –3z)^2

Answer 1

$\red{Hey!}$

$\mathcal{\fcolorbox{aqua}{azure}{\purple{❖(a+b+c)²~=~a²+b²+c²+ab+bc+ca}}}$

$\large\blue{\sf{(-2x)²~+~(5y)²~+~(-3z)²~+(2×~-2x~×5y)~+~(2~×~5y~×~-3x)~+~(2~×-3z~×~-2x}}$

$\large\blue{\sf{4x²~+~25y²~+~9z²~-~20xy~-~20yz~+~12zx}}$

$\fbox\orange{☞4x²~+~25y²~+~9z²~-~20xy~-~20yz~+~12zx}$

$\green{✤✤-Hope~it~helps-✤✤}$

Answer 2

The Answer is Attachment

Hope it Help you