Literacy Research Memory Skill Practice Stretch Factorise Expression How do you factorise x² + 7x + 10? Example: Factorise 8x³ + 4x² HCF = 4x² 8x³÷ 4x² = 2x 4x²÷ 4x² = 1 4x²(2x + 1) Skill Practice Factorise the following: 4x² + 12x 6y² + 15y 21p² - 49p 18 – 12n² 10 – 50t³ 2) Factorise the following as much as possible: 5x² - 15x + 10 3x² + 9x + 12 4x² + 8x – 16 6x² - 18x – 24 12x² + 36 - 108 Stretch Factorise the following as much as possible: 3𝑥 3 + 9𝑥 2 +15 5𝑡− 20𝑡 2 − 25𝑡 3 11𝑟− 33𝑟 2 + 44𝑟 3 14𝑒 3 + 21𝑒 2 −35𝑒 3𝑡 6 − 9𝑡 4 + 6𝑡 2 3) Factorise the following as much as possible: 6𝑥 3 + 5𝑥 2 8𝑦 4 + 9𝑦 2 12𝑝 5 − 6𝑝 3 18𝑚 4 − 27𝑚 3 28𝑣 6 − 42𝑣 3