Question

What kind of problem is this

Answer 1

Answer:

24

Step-by-step explanation:

lets say x is one and y is 1.  5 times 1 is five and to the power of 2 thats 25 and minus 1 equals 24

Answer 2

$(x-5y)^2=x^2-2\cdot x\cdot5y+(5y)^2=x^2-10y+25y^2$