Q1) \(x^2 - 9=0\) \(x = +3\) or \(x= -3 \) | Q1) \(x^2 - 220= 5\) \(x = +15\) or \(x= -15\) | Q1) \(x^2 + 8x-4=0\) , x = -4 ±\( \sqrt{ 20} \) |
Q2) \(x^2 - 4=0\) \(x = +2\) or \(x= -2 \) | Q2) \(x^2 - 72= -8\) \(x = +8\) or \(x= -8\) | Q2) \(x^2 + 10x-6=0\) , x = -5 ±\( \sqrt{ 31} \) |
Q3) \(x^2 - 64=0\) \(x = +8\) or \(x= -8 \) | Q3) \(x^2 - 13= 3\) \(x = +4\) or \(x= -4\) | Q3) \(x^2 -6x-5=0\) , x = +3 ±\( \sqrt{ 14} \) |
Q4) \(x^2 - 16=0\) \(x = +4\) or \(x= -4 \) | Q4) \(x^2 - 5= -4\) \(x = +1\) or \(x= -1\) | Q4) \(x^2 -8x+6=0\) , x = +4 ±\( \sqrt{ 10} \) |
Q5) \(x^2 - 100=0\) \(x = +10\) or \(x= -10 \) | Q5) \(x^2 - 57= -8\) \(x = +7\) or \(x= -7\) | Q5) \(x^2 + 2x-10=0\) , x = -1 ±\( \sqrt{ 11} \) |
Q6) \(x^2 - 36=0\) \(x = +6\) or \(x= -6 \) | Q6) \(x^2 - 201= -5\) \(x = +14\) or \(x= -14\) | Q6) \(x^2 + 6x-4=0\) , x = -3 ±\( \sqrt{ 13} \) |
Q7) \(x^2 - 49=0\) \(x = +7\) or \(x= -7 \) | Q7) \(x^2 - 17= -8\) \(x = +3\) or \(x= -3\) | Q7) \(x^2 -10x+6=0\) , x = +5 ±\( \sqrt{ 19} \) |
Q8) \(x^2 - 25=0\) \(x = +5\) or \(x= -5 \) | Q8) \(x^2 - 20= 5\) \(x = +5\) or \(x= -5\) | Q8) \(x^2 -6x+7=0\) , x = +3 ±\( \sqrt{ 2} \) |
Q9) \(x^2 - 1=0\) \(x = +1\) or \(x= -1 \) | Q9) \(x^2 - 41= 8\) \(x = +7\) or \(x= -7\) | Q9) \(x^2 -6x-3=0\) , x = +3 ±\( \sqrt{ 12} \) |
Q10) \(x^2 - 81=0\) \(x = +9\) or \(x= -9 \) | Q10) \(x^2 - 171= -2\) \(x = +13\) or \(x= -13\) | Q10) \(x^2 -10x-5=0\) , x = +5 ±\( \sqrt{ 30} \) |