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Problem

Perform the operations. $$(2 a+4)(3 a-5)$$

00:55

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Answered step-by-step

Problem 36 Medium Difficulty

Multiply.
$$\begin{array}{r}
5 r^{2}+r+6 \\
2 r-1 \\
\hline
\end{array}$$

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Video Transcript

five are square, plus our plus six times two R minus one negative one times six is negative. Six negative one times are is negative. Are you? Get one times five arse. Where is negative? Five R squared to our time. Six is 12 are That's a positive to our times. Are is to our square and to our times five r squared is 10 are cute, so I have 10 are cute minus three r squared plus 11 are minus six.

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Alan S. Tussy, R. David Gustafson, Diane R. Koenig

Prealgebra

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