Question

Determine o polinômio que representa a área de um retângulo de lados 3x³ e (4x² +5x +10)

Answer 1

$\blue{\boxed{\boxed{\acute{A}rea=\:\:\:base\:\:.\:\:altura}}}$

$\small{\sf{\acute{A}rea=3x^{3}.(4x^{2}+5x+10)}}$

$\small{\small{\small{\sf{\acute{A}rea=3x^{3}.(4x^{2})+3x^{3}.(5x)+3x^{3}.(10)}}}}$

$\boxed{\small{\sf{\acute{A}rea=12x^{5}+15x^{4}+\:30x^{3}}}}$