4 + 5 = = ± 3 M1 for correct first operation p n = A1 for (p + 5)n2 = 2 or = n2 n2 OR A1 for = ± n = 2 5n2 pn2 − + 5n2 = 2 pn2 (p + 5)n2 = 2 = n2 5 = 4, = 6, = 1 3 M1 for correct formula or oe a b c – M1 for A1 for oe = = = 6 Exponential 3 B3 cao Cubic (B2 for 3 or 4 correct, B1 for 1 or 2 correct)) Quadratic Circular Reciprocal 7 3 M1 for correct method to combine the fractions M1(dep) for full simplification of the numerator A1 for or or or
4 p + 5 = n2 = OR pn2 = 2 − 5n2 pn2 + 5n2 = 2 (p + 5)n2 = 2 n2 = n = ± 3 M1 for correct first operation A1 for (p + 5)n2 = 2 or n2 = A1 for n = ± 5 a = 4, b = – 6, c = 1 = = = 3 M1 for correct formula or oe M1 for A1 for oe 6 Exponential Cubic Quadratic Circular Reciprocal 3 B3 cao (B2 for 3 or 4 correct, B1 for 1 or 2 correct)) 7 3 M1 for correct method to combine the fractions M1(dep) for full simplification of the numerator A1 for or or or
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