Ah, splitting the middle term gets tricky here, beta. For 6x² + 5x - 6, you multiply 6 and -6 to get -36. You need factors of -36 that add to +5, which are +9 and -4. Then you rewrite: 6x² + 9x - 4x - 6, group, and factor. I remember this well because my Dada made me practice on his verandah, using chalk on the floor tiles until each step felt as natural as making chai.
#exams#study
Jump in to reply — no account needed.