Complete the square and hence find the roots of the following quadratics: Q1) y = x2 + 4x – 12 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q2) y = x2 + 6x + 8 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q3) y = x2 – 6x + 5 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q4) y = x2 – 8x + 12 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q5) y = 2x2 + 6x – 8 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q6) y = x2 – 12x – 36 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q7) y = 4x2 + 2x – 90 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q8) y = 5x2 + 12x – 30 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q9) y = –6x2 – 24x + 30 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 = Q10) y = 4x2 – 18x – 45 A = B = C = The turning point is at: x = y = The roots are at: x1 = x2 =