Answer:
You can insert any number instead of X and y because they are Variables.
Answer:
By factoring
Step-by-step explanation:
4x^2+25=20x then:
4x^2-20x+25=0
factoring:
(2x-5)(2x-5)=0
2x=5, x=2.5
Basically anything greater than zero...k>0
Four hundred three and six hundred and 8
