Nikolas and Angela were trying to solve the equation: 3x^2+10x=03x 2 +10x=03, x, squared, plus, 10, x, equals, 0 Nikolas said, “I can complete the square. Half of 101010 is 555, and 555 squared is 252525. So I'll add 252525 to both sides, factor, and solve.” Angela said, “I'll factor the left-hand side of the equation as x(3x+10)x(3x+10)x, left parenthesis, 3, x, plus, 10, right parenthesis and solve using the zero product property.”