Question

Find the value of x,y and z

Answer 1

$x=\sqrt{70}, y =\sqrt{21}, z=\sqrt{30}$

Solution:

Given c = 3 and d = 10 – 3 = 7

To find the value of y:

$y^2= 3\times 7$

$y^2= 21$

Taking square root on both sides of the equation.

$y=\sqrt{21}$

To find the value of x:

$x^2=7\times10$

$x^2=70$

Taking square root on both sides of the equation.

$x=\sqrt{70}$

To find the value of z:

$z^2=3\times10$

$z^2=30$

Taking square root on both sides of the equation.

$z=\sqrt{30}$

Hence the value of $x=\sqrt{70}, y =\sqrt{21}, z=\sqrt{30}$.