Question

pls do it fast
pls
pls ​

Answer 1

Answer:

1 .) 7 square =14 I solve only 2 rest of the two question you solve it on yourself

Answer 2

Answer:

Step-by-step explanation:

(x+y)^2=(x-y)^2-4xy

            =7^2-4*12

            =1

(x-y)=1

(x+y)=7

so x=4 and y=3

1.25

2.1

3.7

4.4and3