Answer
$-10t^6$
Work Step by Step
We start with the given expression: $(2t^4)(-5t^2)$
We rearrange and regroup the factors by like terms: $(2\times-5)(t^2t^4)$
We multiply the constants: $-10t^2t^4$
To multiply powers with the same base, we add the exponents: $-10t^{2+4}=-10t^6$
