Find, using algebra, all the real solutions to the equation
p2=125pp^2 = 125\sqrt{p}p2=125p
q4−17q2−18=0q^4 - 17q^2 - 18 = 0q4−17q2−18=0
134 exam-style questions on Edexcel AS Level Maths Algebraic Expressions, covering 1.1 Index Laws, 1.2 Expanding Brackets, 1.3 Factorising, 1.4 Negative and Fractional Indices, and 1.5 Surds. Each one has a worked solution and a mark scheme showing where the marks go.