Multiplying Polynomials Word Problems - Examples & Practice

$A = x^{2}+\frac{13}{2}x-\frac{21}{2}$

$A = x^{2}-\frac{21}{2}$

$A = 2x^{2}+x-21$

$A = x^{2}+\frac{1}{2}x-\frac{21}{2}$