II.- Resta de expresiones algebraicas

A continuación se proponen ejercicios para practicar la resta de expresiones algebraicas, enfocados en la correcta identificación de términos semejantes y en la aplicación de las reglas de sustracción.

120.

$\large (3ab^{2}+2a^{2}b)-(2ab^{2}-a^{2}b)$

121.

$\large (4a^{2}b^{3}-3ab^{2})-(5a^{2}b^{3}+4ab^{2})$

122.

$\large (3x^{2}-7x)-(2x^{2}+5x)$

123.

$\large (4x+10y)-(5x+y)$

124.

$\large (20a^{4}-10a^{3}b+6a^{2}b^{2})-$ $\large (15a^{4}-3a^{3}b-6a^{2}b^{2})$

125.

$\large (6a^{5}-8a^{4}b+3a^{2}b^{3})-$ $\large (3a^{2}b^{3}-4a^{4}b-4a^{5})$

126.

$\large (3a-1+12a^{2}+b)-$ $\large (3b-4+3a+8a^{2})$

127.

$\large (3m^{2}-6mn+2n^{2})-$ $\large (2m^{2}+4mn+4n^{2})$

128.

$\large (a^{3}+3a^{2}b+3ab^{3}+b^{3})-$ $\large (a^{3}+3a^{2}b+3ab^{3}+b^{3})-$

129.

$\large (2x^{2}+3x+2a^{2}+b)-$ $\large (a^{3}-3a^{2}b+3ab^{2}-b^{3})$

130.

$\large [2(a-b)-c+d]-$ $\large [a-b-2(c-d)]$

131.

$\large (5x^{3}-1)-$ $\large (2x^{3}-5x^{2}+7x+1)$

132.

$\large (3x^{2}-5xy+8y^{2})-$ $\large (2x^{2}-3xy+4y^{2})$

133.

$\large (8a-5b+6c-7d)-$ $\large (6a+3b-10c-4d)$

134.

$\large (5xy+3y^{2}-7z^{3}+4y^{2}x)-$ $\large (7y^{2}-4y^{2}z+2xy-5z^{3})$

135.

$\large (5a^{3}-4a^{2}b-6ab^{2}+b^{3})-$ $\large (a^{3}-7a^{2}b+2ab^{2}-5b^{3})$

136.

$\large (7a^{5}+9a^{4}b-5a^{3}b^{2}+6a^{2}b^{3})-$ $\large (4a^{5}-10a^{2}b^{3}-6a^{4}b+8a^{3}b^{2})$

137.

$\large (3a^{4}-5a^{3}b+4a^{2}b^{}-8ab^{3}+b^{4})-$ $\large (a^{4}+2a^{3}b-a^{2}b^{2}-8ab^{3}+2b^{4})$

138.

$\large (8am^{2}-6bm+4c)-$ $\large (3bm-5am^{2}-3c)$

139.

$\large (\frac{2}{3}ab+\frac{4}{5}b)-$ $\large (\frac{1}{3}ab-\frac{6}{5}b)$

140.

$\large (\frac{1}{2}a^{2}b^{2}+3ab^{5}+7b)-$ $\large (\frac{1}{4}a^{2}b^{2}-3ab^{5}+7b)$

141.

$\large (\frac{1}{4}mn^{2}+\frac{1}{3}m^{2}n+\frac{1}{6}m^{3})-$ $\large (\frac{1}{6}m^{2}n+\frac{1}{4}m^{3}-\frac{1}{3}mn^{2})$

142.

$\large (\frac{2}3{}x^{2}y+\frac{1}{4}xy^{2}+\frac{2}{3}y^{2})-$ $\large (\frac{1}{3}xy^{2}-\frac{3}{4}x^{2}y-\frac{5}{8}y^{2})$

143.

$\large (\frac{3}{4}a^{4}b^{3}-\frac{1}{3}a^{3}b^{2}+6a^{5}b)-$ $\large (\frac{2}{3}a^{3}b^{2}+6a^{5}b-\frac{1}{4}a^{4}b^{3})$

144.

$\large (7x^{2}y^{5}-3x^{3}y^{3}-\frac{7}{8}x^{5})-$ $\large (\frac{5}{4}x^{5}-4x^{3}y^{3}+8x^{2}y^{5})$

145.

$\large (\frac{2}{3}a^{2}-\frac{1}{4}ab+\frac{3}{5}b^{2})-$ $\large (\frac{1}{2}a^{2}+\frac{1}{3}ab-\frac{1}4{b^{2}})$

146.

$\large (5x^{3}y-\frac{3}{4}x^{2}y^{2}+\frac{2}{3}xy^{2})-$ $\large (\frac{4}{5}x^{3}y+\frac{5}{2}xy^{3}-2x^{2}y^{2})$

147.

$\large (5y^{2}-18\sqrt{ay}+4\sqrt[3]{by^{2}}+15)-$ $\large (3y^{2}-6\sqrt{ay}+9\sqrt[3]{by^{2}}-10)$

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