Question

please solve this
my maths Homework ​

Answer 1

Given x=1,y=2

(i) 4x−3y+5=4(1)−3(2)+5=4−6+5=3  

(ii) x  

2

+y  

2

=(1)  

2

+(2)  

2

=1+4=5

(iii) xy+3y−9=(1)(2)+3(1)−9=2+3−9=−4