Simplify using the horizontal method (2^2+4n+4)(4n-5 )
2 answers:
<span><span>=<span>(<span>10<span>x2</span></span>)</span>+<span>(<span>14x</span>)</span>+<span>(<span>5x</span>)</span>+<span>(7)</span>=</span><span>=<span>(<span>10<span>x2</span></span>)</span>+<span>(<span>14x</span>)</span>+<span>(<span>5x</span>)</span>+<span>(7)</span>=</span></span>
<span><span>=10<span>x2</span>+19x+7</span><span>=10<span>x2</span>+19x+7</span></span>.
<span>Answer: <span><span>(<span>2x+1</span>)</span><span>(<span>5x+7</span>)</span>=10<span>x2</span>+19x+<span>7</span></span></span>
<span> (2^2+4n+4)(4n-5 )
=</span><span> (4+4n+4)(4n-5 )
= (4n + 8)(4n - 5)
= 16n^2 + 32n - 20n - 40
= 16n^2 + 12n - 40</span>
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