Solve {l}{-2m^{2}-7m^{2}}{y^{2}-12x^2y^2+x^2y^2}{-2b-5b+9a}

$$\left. \begin{array} { l } { - 2 m ^ { 2 } - 7 m ^ { 2 } } \\ { y ^ { 2 } - 12 x ^ { 2 } y ^ { 2 } + x ^ { 2 } y ^ { 2 } } \\ { - 2 b - 5 b + 9 a } \end{array} \right.$$

Least Common Multiple

$$9\left(7b-9a\right)\left(1-11x^{2}\right)\left(my\right)^{2}$$

Solution Steps

Identify all the factors and their highest power in all expressions. Multiply the highest powers of these factors to get the least common multiple.

$$9\left(7b-9a\right)m^{2}y^{2}\left(1-11x^{2}\right)$$

Expand the expression.

$$891am^{2}x^{2}y^{2}-693bm^{2}x^{2}y^{2}+63bm^{2}y^{2}-81am^{2}y^{2}$$

Evaluate

$$-9m^{2},\ y^{2}-11\left(xy\right)^{2},\ 9a-7b$$