I dont understand this problem...

Question

4x^2-0x-25

Is x equal to one or 0?

Answer 1

4x^2-0x-25=0

4x^2-0x-25=0

Add 25 to each side

4x^2-0x-25+25=0+25

4x^2=25

Square root on both sides

√(4x^2) =√(25)

2x =±5

x = ±(5/2)