Question

Hallar "a + b" en el siguiente número capicúa. (a - 1)(b - 1)(3b - 7)(3a - 5)

Answer 1

Explicación paso a paso:

(a−1)(b−1)(3b−7)(3a−5)

=((a−1)(b−1)(3b−7))(3a+−5)

=((a−1)(b−1)(3b−7))(3a)+((a−1)(b−1)(3b−7))(−5)

=9a2b2−30a2b−9ab2+21a2+30ab−21a−15ab2+50ab+15b2−35a−50b+35