Question

Write the degree of the polynomial (x + 1) (x²+3)

Answer 1

$\tt{we \: have \: to \: expand \: the \: polynomial \: first}$

$(x + 1)( {x}^{2} + 3)$

$\tt{x( {x}^{2} + 3) + 1( {x}^{2} + 3) }$

${x}^{ 3} + 3x + {x}^{2} + 3$

${x}^{3} + {x}^{2} + 3x + 3$

$\tt \green{so..the \: degree \: of \: the \: polynomial \: is \: \blue{3}}$