g(x)=2x3+x2−38x+35g(x) = 2x^3 + x^2 - 38x + 35g(x)=2x3+x2−38x+35
Use the factor theorem to show that (x+5)(x + 5)(x+5) is a factor of g(x)g(x)g(x).
Hence, show that g(x)g(x)g(x) can be written as the product of three linear factors.
302 exam-style questions on WJEC A Level Maths 1.2 Algebra and Functions, covering 1.2.1 Algebra and Functions, 1.2.2 Algebra and Functions, 1.2.3 Algebra and Functions, 1.2.4 Algebra and Functions, 1.2.5 Algebra and Functions, 1.2.6 Algebra and Functions, 1.2.7 Algebra and Functions, 1.2.8 Algebra and Functions, 1.2.9 Algebra and Functions, 1.2.10 Algebra and Functions, 1.2.11 Algebra and Functions, and 1.2.12 Algebra and Functions. Each one has a worked solution and a mark scheme showing where the marks go.