Question

please answer this question

step by step solution

please

Answer 1

given that the value of x is 1 and the value od y is 2 the substitue these values in the given equations

1. 4x-3y+5
4(1)3(2)+5 = 4-6+5
= -2+5
=3

2.
$x^{2} + y {2}$
$= {1}^{2} + {2}^{2} \\ 1 + 4 \\ = 5$

3. xy+3y-9
=(1)(2)+3(2)-9=2+6-9
=-1

thats all