Solving Quadratic Equations using the formula

## Difficult

Q1) Solve $x^2 + 14x-10$ =0 to 2 dp.
Q1) Solve $4x^2 -x-9=0$ to 2 dp.
Q1) Solve $4x^2 =-4x+6$ to 2 dp.
Q2) Solve $x^2 + 6x-7$ =0 to 2 dp.
Q2) Solve $3x^2 -4x-5=0$ to 2 dp.
Q2) Solve $2x^2 =-x+10$ to 2 dp.
Q3) Solve $x^2 + 4x+5$ =0 to 2 dp.
Q3) Solve $5x^2 -x-6=0$ to 2 dp.
Q3) Solve $4x^2 -5x =9$ to 2 dp.
Q4) Solve $x^2 + 16x-4$ =0 to 2 dp.
Q4) Solve $x^2 -3x-4=0$ to 2 dp.
Q4) Solve $x^2 =3x-8$ to 2 dp.
Q5) Solve $x^2 + 8x-7$ =0 to 2 dp.
Q5) Solve $x^2 -5x-10=0$ to 2 dp.
Q5) Solve $4x^2 =-2x+10$ to 2 dp.
Q6) Solve $x^2 + 6x+10$ =0 to 2 dp.
Q6) Solve $4x^2 -3x-7=0$ to 2 dp.
Q6) Solve $x^2 =-4x+8$ to 2 dp.
Q7) Solve $x^2 + 16x-9$ =0 to 2 dp.
Q7) Solve $5x^2 -x-4=0$ to 2 dp.
Q7) Solve $3x^2 + 5x =9$ to 2 dp.
Q8) Solve $x^2 + 10x+6$ =0 to 2 dp.
Q8) Solve $x^2 -6x+3=0$ to 2 dp.
Q8) Solve $x^2 =-4x-3$ to 2 dp.
Q9) Solve $x^2 + 6x-10$ =0 to 2 dp.
Q9) Solve $5x^2 -5x-5=0$ to 2 dp.
Q9) Solve $x^2 =-5x-9$ to 2 dp.
Q10) Solve $x^2 + 10x+7$ =0 to 2 dp.
Q10) Solve $2x^2 -4x-7=0$ to 2 dp.
Q10) Solve $3x^2 + 2x =7$ to 2 dp.