Question

x+y=z, x+y=65,x×x=169 then z-x+y=?​

Answer 1

Given That

.

x*x = 169

.

X² = 169

.

x = 13

.

Given x*y = 65

.

We know x=13

.

13*y =65

.

y= 65/13

.

y = 5

.

We Know (a+b)² = a²+b²+2ab

.

(z)² = (13)²+(5)²+2*13*5

.

z² = 169+25+130

.

z² = 324

.

z = 18

Now

.

z-x+y = 18-13+5

.

=> 5+5

.

=>10

.

Hope It Helps U :)