Q1) \(x^2 + 4x =0 \) [ \( x= 0 \) or \( x= -4 \)
]

Q1) \(x^2 + 6x-4 =0\) [ \(x=-3 ± \sqrt{13}\) ]

Q1) \(x^2 + 13x-7 =0\) [ \(x= \)-6\(\frac{1}{2}\) ± \( \sqrt{{ 49\frac{1}{4} }}\)]

Q2) \(x^2 -10x =0 \) [ \( x= 10 \) or \( x= 0 \)
]

Q2) \(x^2 + 16x-4 =0\) [ \(x=-8 ± \sqrt{68}\) ]

Q2) \(x^2 + 5x-3 =0\) [ \(x= \)-2\(\frac{1}{2}\) ± \( \sqrt{{ 9\frac{1}{4} }}\)]

Q3) \(x^2 + 10x =0 \) [ \( x= 0 \) or \( x= -10 \)
]

Q3) \(x^2 + 16x-8 =0\) [ \(x=-8 ± \sqrt{72}\) ]

Q3) \(x^2 + 9x-4 =0\) [ \(x= \)-4\(\frac{1}{2}\) ± \( \sqrt{{ 24\frac{1}{4} }}\)]

Q4) \(x^2 + 6x =0 \) [ \( x= 0 \) or \( x= -6 \)
]

Q4) \(x^2 + 10x+9 =0\) [ \(x=-5 ± \sqrt{16}\) ]

Q4) \(x^2 + 13x-5 =0\) [ \(x= \)-6\(\frac{1}{2}\) ± \( \sqrt{{ 47\frac{1}{4} }}\)]

Q5) \(x^2 -8x =0 \) [ \( x= 8 \) or \( x= 0 \)
]

Q5) \(x^2 + 14x-9 =0\) [ \(x=-7 ± \sqrt{58}\) ]

Q5) \(x^2 + 13x-6 =0\) [ \(x= \)-6\(\frac{1}{2}\) ± \( \sqrt{{ 48\frac{1}{4} }}\)]

Q6) \(x^2 -4x =0 \) [ \( x= 4 \) or \( x= 0 \)
]

Q6) \(x^2 + 18x+3 =0\) [ \(x=-9 ± \sqrt{78}\) ]

Q6) \(x^2 + 15x-9 =0\) [ \(x= \)-7\(\frac{1}{2}\) ± \( \sqrt{{ 65\frac{1}{4} }}\)]

Q7) \(x^2 + 2x =0 \) [ \( x= 0 \) or \( x= -2 \)
]

Q7) \(x^2 + 14x-6 =0\) [ \(x=-7 ± \sqrt{55}\) ]

Q7) \(x^2 + 15x-6 =0\) [ \(x= \)-7\(\frac{1}{2}\) ± \( \sqrt{{ 62\frac{1}{4} }}\)]

Q8) \(x^2 -6x =0 \) [ \( x= 6 \) or \( x= 0 \)
]

Q8) \(x^2 + 14x+10 =0\) [ \(x=-7 ± \sqrt{39}\) ]

Q8) \(x^2 + 19x-6 =0\) [ \(x= \)-9\(\frac{1}{2}\) ± \( \sqrt{{ 96\frac{1}{4} }}\)]

Q9) \(x^2 + 8x =0 \) [ \( x= 0 \) or \( x= -8 \)
]

Q9) \(x^2 + 8x+4 =0\) [ \(x=-4 ± \sqrt{12}\) ]

Q9) \(x^2 + 11x-4 =0\) [ \(x= \)-5\(\frac{1}{2}\) ± \( \sqrt{{ 34\frac{1}{4} }}\)]

Q10) \(x^2 -2x =0 \) [ \( x= 2 \) or \( x= 0 \)
]

Q10) \(x^2 + 8x+6 =0\) [ \(x=-4 ± \sqrt{10}\) ]

Q10) \(x^2 + 5x-2 =0\) [ \(x= \)-2\(\frac{1}{2}\) ± \( \sqrt{{ 8\frac{1}{4} }}\)]