(-5a^3) (-7a)^2
You asked:
Evaluate the expression: \(-\left( 5 \cdot {a}^{3} \right) \cdot {\left( -\left( 7 a \right) \right)}^{2}\)
MathBot Answer:
\[-\left( 5 \cdot {a}^{3} \right) \cdot {\left( -\left( 7 a \right) \right)}^{2} = - 245 a^{5}\]