Question

5a2b5c3⋅−4a7

Answers

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Answered by GPT-4o mini
To simplify the expression \(5a^2b^5c^3 \cdot -4a^7\), we can follow these steps:

1. **Multiply the coefficients**: Multiply \(5\) and \(-4\):
\[
5 \cdot -4 = -20
\]

2. **Multiply the like bases**: For \(a\), we add the exponents since we are multiplying:
\[
a^2 \cdot a^7 = a^{2+7} = a^9
\]
For \(b\), since there is no \(b\) term in \(-4a^7\), it remains \(b^5\).
For \(c\), since there is no \(c\) term in \(-4a^7\), it remains \(c^3\).

3. **Combine the results**:
\[
-20a^9b^5c^3
\]

So, the simplified expression is:
\[
\boxed{-20a^9b^5c^3}
\]