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Anna007 [38]
4 years ago
8

Please help !!!!!!!!!!!!-

Mathematics
1 answer:
svp [43]4 years ago
5 0
<span><span>3.(4p−2)</span>(p−4)</span><span>
=<span><span>(<span>4p+−2</span>)</span><span>(<span>p+−4</span>)

</span></span></span><span>=<span><span><span><span><span>(4p)</span>(p)</span>+<span><span>(4p)</span><span>(−4)</span></span></span>+<span><span>(−2)</span>(p)</span></span>+<span><span>(−2)</span><span>(−4)

</span></span></span></span><span>=<span><span><span><span>4p2</span>−16p</span>−2p</span>+8

</span></span><span>=<span><span><span>4p2</span>−18p</span>+<span>8

Simplified form - </span></span></span>4p2−18p+<span>8

4.</span><span>(<span><span><span>2x2</span>+4x</span>−3</span>)</span><span>(<span>3x+1</span>)

</span><span>=<span><span>(<span><span><span>2x2</span>+4x</span>+−3</span>)</span><span>(<span>3x+1</span>)

</span></span></span><span>=<span><span><span><span><span><span><span>(<span>2x2</span>)</span><span>(3x)</span></span>+<span><span>(<span>2x2</span>)</span>(1)</span></span>+<span><span>(4x)</span><span>(3x)</span></span></span>+<span><span>(4x)</span>(1)</span></span>+<span><span>(−3)</span><span>(3x)</span></span></span>+<span><span>(−3)</span>(1)</span></span></span><span>
=<span><span><span><span><span><span>6x3</span>+<span>2x2</span></span>+<span>12x2</span></span>+4x</span>−9x</span>−3

</span></span><span>=<span><span><span><span>6x3</span>+<span>14x2</span></span>−5x</span>−<span>3

Simplified form - </span></span></span><span>6x3+14x2−5x</span>−<span>3</span>
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