## Algebra 1

$12x^4+42x^2$
$6x(2x^3+7x)\longrightarrow$ multiply using the distributive property $6x(2x^3)+6x(7x)\longrightarrow$ multiply the coefficients and add the exponents $12x^{(1+3)}+42x^{(1+1)}\longrightarrow$ simplify $12x^4+42x^2$