Question

Expand (3x+-2z)² Please reply fast it's very important

Answer 1

$\huge\purple{AnsWeR}$

$(a-b)^2=>a^2+b^2-2ab$

NoW,

$a=>3x$

$b=>2z$

$(3x-2z)²=>(3x)²+(2z)²-2(3x²×2z²)$

$(3x-2z)²=>9x²+4z²-2(6x²z²)$

$(3x-2z)²=>9x²+4z²-12x²z²$

ANSWER

HOPE SO IT IS HELPFUL..✌️❣️..

Answer 2

$\huge\red{AnsWeR}$

$(a-b)^2=>a^2+b^2-2ab$

NoW,

$a=>3x$

$b=>2z$

$(3x-2z)²=>(3x)²+(2z)²-2(3x²×2z²)$

$(3x-2z)²=>9x²+4z²-2(6x²z²)$

$(3x-2z)²=>9x²+4z²-12x²z²)$ ANSWER