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This guide explores the art of quadratic factorization, a crucial skill for anyone adept at long multiplication. By understanding how to express quadratic expressions as products of binomials, you simplify complex equations and enhance problem-solving capabilities. The content covers methods using examples like (a + 4)(a + 8), illustrating both the theory and practical applications. Whether you’re a student or a maths enthusiast, this resource will deepen your understanding of quadratic functions and empower you with effective factoring techniques.
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Quadratic Factorising If you can long multiply you can factorise!
24 x 28 (20 + 4)(20 + 8) 20 4 24 28 192 480 672 x 20 400 80 8 x 24 480 + 20 x 24 8 160 32 192 400 80 160 32 + 672 1
(a + 4) x (a + 8) (a + 4)(a + 8) a 4 (a + 4) (a + 8) 8a + 32 x a a2 4a 8(a + 4) a2 + 4a + a(a + 4) a2 + 4a a2 + 12a + 32 8 8a 32 8a + 32 a2 4a 8a 32 + a2 + 12a + 32 2
(a - 4) x (a + 8) (a - 4)(a + 8) a -4 (a- 4) (a + 8) 8a- 32 x a a2 -4a 8(a- 4) a2-4a + a(a- 4) a2-4a a2 + 4a- 32 8 8a -32 8a- 32 a2 -4a 8a -32 + a2 + 4a - 32 3
(a - 4) x (a - 8) (a - 4)(a - 8) a -4 (a- 4) (a- 8) 8a + 32 x a a2 -4a 8(a- 4) a2-4a + a(a- 4) a2-4a a2-12a + 32 -8 -8a +32 -8a + 32 a2 -4a -8a +32 + a2-12a + 32 4
