Question

Find y, if y/4 + 1/2 = 5​

Answer 1

$Answer</p><p></p><p>y+y1=9</p><p></p><p>Squaring both side</p><p></p><p>(y+y1)2=92</p><p></p><p>y2+y21+2×y×y1=81</p><p></p><p>y2+y21=81−2=79</p><p></p><p>Squaring</p><p></p><p>(y2+y21)2=(79)2</p><p></p><p>y4+y41+2×y2×y21=6241</p><p></p><p>y4+y41=6,239.</p><p></p><p>$

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