If x y = 2 and x2 + y2 = 20, then value of (x + y)2 is

1.	If x y = 2 and x² + y² = 20, then value of (x + y)² is
A.	38
B.	36
C.	16
D.	12
Answer» C. 16

Discussion

No Comment Found

Related MCQs

If x = 11, the value of x<sup>5</sup> 12x<sup>4</sup> + 12x 12x + 12x - 1 is
If x = 999, y = 1000, z = 1001, then the value of <br><table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>x + y + z - 3xyz</center></td><td rowspan="2">is :</td></tr><tr><td style="text-align: center;">x - y + z</td></tr></table>
If x = a + <span style=" text-decoration: overline;">a + b </span> + a - <span style=" text-decoration: overline;">a + b </span> , then x + 3bx is equal to
The expression x<sup>4</sup> 2x + k will be a perfect square when the value of k is
<table><tr><td rowspan="2"> If the line</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>x</center></td><td rowspan="2"> - </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>y</center></td><td rowspan="2"> = 1</td></tr><tr><td style="text-align: center;">a</td><td style="text-align: center;">b</td></tr></table><br>passes through the points (2, 3) and (4, 5) then (a, b) is
<table><tr><td rowspan="2">If p + </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2"> = 1 then the value of (p + 2) + </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2"> - 3 is : </td></tr><tr><td style="text-align: center;">p + 2</td><td style="text-align: center;">(p + 2) </td></tr></table>
The third proportional of the following numbers (x y) , (x y ) is :
The distance between the lines y = mx + c<sub>1</sub> and y = mx + c<sub>1</sub> is
When x<sup>m</sup> is multiplied by x<sup>n</sup>, product is 1. The relation between m and n is
If x xy + y = 2 and x<sup>4</sup> + x y + y<sup>4</sup> = 6, then the value of (x + xy + y ) is :

If x y = 2 and x2 + y2 = 20, then value of (x + y)2 is

Discussion

No Comment Found

Related MCQs

Reply to Comment

If x y = 2 and x² + y² = 20, then value of (x + y)² is