Across
- 1. Solve 2 + (5 − 3) × 3 14, 5th term using aₙ = a₁ + (n−1)d for 2, 5, 8,… 5, Difference using a₂ − a₁ for 7, 12, 17,… 24, 4th term using aₙ = a₁rⁿ⁻¹ for 3, 6, 12,… 6, Ratio using a₂ ÷ a₁ for 2, 6, 18,… 7, Arithmetic mean of 4 and 10 4, Harmonic mean of 6 and 3 3, Highest power term in 4x³ − 2x + 7 1, Value of f(2) for f(x)=x²−3x+1 0, Remainder using f(1) for x²−4x+3 6, One factor of x³−4x²−x+4 5, Term with x² in 5x²−7x+9 -8, Value of f(0) for 3x³+2x−8 9, Maximum solutions of ax²+bx+c=0 12, Positive solution of x²=9 2, −b/2a for y = x²−4x+1 4, Axis of symmetry of y = x²−6x+5 10, Value of f(0) for 2x²−x+4 11, Exponent if 3xⁿ+1 is linear 13, Values making (x−p) a factor of x²−5x+6 15, Arithmetic mean of 8 and 14 28, 10th term using aₙ = a₁ + (n−1)d for 1, 4, 7,… 16, Ratio using a₂ ÷ a₁ for 5, 15, 45,… 64, 6th term using aₙ = a₁rⁿ⁻¹ for 2, 4, 8,… 18, Geometric mean of 4 and 16 20, Highest power term in x⁴ − x² + 1 -1, Value of f(1) for x³−2x+1 8, Remainder using f(1) for x³−1 7, One factor of x²−7x+10 19, Number of terms in 3x²−5x+1 21, Solution of 2x−8=0 -2, −b/2a for y = x²+2x−3 17, Value of f(1) for x²−2x+1 22, Exponent in axⁿ+bx+c if quadratic 23, Arithmetic mean of 10 and 20 25, Harmonic mean of 4 and 12 27, Value of f(−1) for x²+2x+1 -3, Term with x³ in −3x³+5x−1 29, Value of f(0) for x²−6x+9 30, Common ratio if aₙ₊₁ = 3aₙ