Question

coeficient of x² in 3x³-x²+1 is​

Answer 1

${\huge{\underbrace{\rm{Answer{\red\checkmark}}}}}$

$\mapsto \: \rm {3x}^{3} - {x}^{2} + 1$

$\implies \rm \: 3 \times ( {x}^{3} ) + ( -1 )( {x}^{2} ) + 1$

$\tt \: as \: u \: can \: see \:$

$\tt \: the \:coefficient \: of \: ( {x}^{2} ) = ( - 1)$

$\star \boxed{ \bf( - 1)}$