Evaluate
\frac{2x^{2}\left(5x^{2}-8x-1.4\right)}{5}
Expand
2x^{4}-\frac{16x^{3}}{5}-\frac{14x^{2}}{25}
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2x^{4}-3.2x^{3}-0.56x^{2}
Use the distributive property to multiply 0.4x by 5x^{3}-8x^{2}-1.4x.
2x^{4}-3.2x^{3}-0.56x^{2}
Use the distributive property to multiply 0.4x by 5x^{3}-8x^{2}-1.4x.
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