https://peda.net/id/261f7496cae 2018-10-08T13:37:26+03:00 https://peda.net/:static/535/peda.net.logo.bg.svg <div class="license">Tämän sivun lisenssi <a rel="license" href="https://peda.net/info">Peda.net-yleislisenssi</a></div> https://peda.net/id/ee2c54d2cae 2018-10-08T14:11:40+03:00 <img src="https://math-demo.abitti.fi/math.svg?latex=x%5E2%3C5x" alt="x^2&lt;5x"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=x%5E2-5x%3D0" alt="x^2-5x=0"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=x%5Cleft(x-5%5Cright)%3D0" alt="x\left(x-5\right)=0"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=x%3D5" alt="x=5"/><br/> kaikki kokonaisluvut jotka ovat pienempiä kuin 5 2018-10-08T14:11:40+03:00 https://peda.net/id/63180350cae 2018-10-08T14:07:46+03:00 a) x=1 tai x=4<br/> b) 1&lt;x&lt;4<br/> c) x&lt;1 ja x&gt;4 2018-10-08T14:07:46+03:00 https://peda.net/id/e50ccf40cae 2018-10-08T14:04:15+03:00 a) x on välillä ]2, 3[<br/> b) x on kaikki reaaliluvut<br/> c) x&lt;4 2018-10-08T14:04:15+03:00 https://peda.net/id/2cd1f6a4cae 2018-10-08T13:54:21+03:00 a)<br/> <img src="https://math-demo.abitti.fi/math.svg?latex=3x%5E2-4x-4%3D0" alt="3x^2-4x-4=0"/><br/> <img src="https://math-demo.abitti.fi/math.svg?latex=x%3D%5Cfrac%7B4%5Cpm%5Csqrt%7B%5Cleft(-4%5Cright)%5E2-4%5Ccdot3%5Ccdot%5Cleft(-4%5Cright)%7D%7D%7B2%5Ccdot3%7D%3D%5Cfrac%7B4%5Cpm%5Csqrt%7B16%2B3%5Ccdot16%7D%7D%7B6%7D%3D%5Cfrac%7B4%5Cpm%5Csqrt%7B64%7D%7D%7B6%7D%3D%5Cfrac%7B4%2B8%7D%7B6%7D%3D%5Cfrac%7B12%7D%7B6%7D%3D2%5C%20tai%5C%20%5Cfrac%7B4-8%7D%7B6%7D%3D-%5Cfrac%7B4%7D%7B6%7D%3D-%5Cfrac%7B2%7D%7B3%7D" alt="x=\frac{4\pm\sqrt{\left(-4\right)^2-4\cdot3\cdot\left(-4\right)}}{2\cdot3}=\frac{4\pm\sqrt{16+3\cdot16}}{6}=\frac{4\pm\sqrt{64}}{6}=\frac{4+8}{6}=\frac{12}{6}=2\ tai\ \frac{4-8}{6}=-\frac{4}{6}=-\frac{2}{3}"/><br/> b)<br/> <a href="https://peda.net/p/oskari.lahtinen/mpjy/3-2/324/sieppaa-png#top" title="Sieppaa.PNG"><img src="https://peda.net/p/oskari.lahtinen/mpjy/3-2/324/sieppaa-png:file/photo/d3cd29782b44b1d151a7f7f40d766c3c77c8f2e5/Sieppaa.PNG" alt="" title="Sieppaa.PNG" class="inline" loading="lazy"/></a><br/> c)<br/> <img src="https://math-demo.abitti.fi/math.svg?latex=-%5Cfrac%7B2%7D%7B3%7D%5Cle%20x%5Cle2%7B%2C%7D%5C%20x%5C%20on%5C%20v%C3%A4lill%C3%A4%5C%20%5Cleft%5B-%5Cfrac%7B2%7D%7B3%7D%7B%2C%7D%5C%202%5Cright%5D" alt="-\frac{2}{3}\le x\le2{,}\ x\ on\ välillä\ \left[-\frac{2}{3}{,}\ 2\right]"/> 2018-10-08T13:51:56+03:00