Simplify this (2x - 9)(4x + 1)
2 answers:
<span><span>(<span><span>2x</span>−9</span>)</span><span>(<span><span>4x</span>+1</span>)</span></span><span> =<span><span>(<span><span>2x</span>+<span>−9</span></span>)</span><span>(<span><span>4x</span>+1</span>)</span></span></span><span> =<span><span><span><span><span>(<span>2x</span>)</span><span>(<span>4x</span>)</span></span>+<span><span>(<span>2x</span>)</span><span>(1)</span></span></span>+<span><span>(<span>−9</span>)</span><span>(<span>4x</span>)</span></span></span>+<span><span>(<span>−9</span>)</span><span>(1)</span></span></span></span><span> =<span><span><span><span>8<span>x^2</span></span>+<span>2x</span></span>−<span>36x</span></span>−9</span></span><span> Answer: <span><span><span>8<span>x^2</span></span>−<span>34x</span></span>−<span>9</span></span></span>
If you add bith of the x's you'll get 6x and if you combine the -9 and +1 you'll get -8 which leaves you with 6x-8
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