Fullstendig kvadrat
Fullstendig kvadrat
Fullstendig kvadrat
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<strong>Fullstendig</strong> <strong>kvadrat</strong><br />
x 2 + bx + c<br />
x2 + 8x + 16<br />
b = 8<br />
b<br />
2<br />
= 4<br />
b 2<br />
2<br />
= 16 = c<br />
x 2 + 8x + 16 er et fullstendig <strong>kvadrat</strong><br />
x 2 - 4x + 2<br />
b b 2<br />
b = 4 = 2 = 4 c<br />
2 2<br />
x 2 - 4x + 2 er et ikke et fullstendig <strong>kvadrat</strong>
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