Answer:
una sa lahat pag-aralan mo toh. basic lang ang ang factoring. i-take note mo ang rules of integers kung maari. at memorize the multiplication table. use Lab Gear para sa checking.
first term : multiply
second term: add
third term: multiply
tips: kunyare x²-2x+8
think two no.'s na pag i-multiply 8 ang sagot, so we have 4*2 , and 1*8 tama?
now, -2 ang inner or second term, alin jan sa dalawa ang -2 ang sagot pag using adding integer rules?
-4 & 2 tama? ang sabe sa unlike rules or magkaiba ang sign, i-subtract mo and copy the sign of the bigger no. ano ang pinaka mataas na no.? 4 tama? so, dahil negative ang sign sa -2 (second term)
magiging,
-4 + 2 = -2 (constant or number sa second term)
therefore, magiging sagot mo ay (x-4) (x+2)
Step-by-step explanation:
1. x²+6x+9=0
(x+3)(x+3)
first term = x²
second term = 6x
third term = 9
first: x * x = x²
inner: 3+3 = 6
outer: 3*3 = 9
see? madali lang. kahit naka pikit ka basic lang
2. x²+9x+20=0
(x+4) (x+5)
first term = x²
second term = 9x
third term = 20
first: x * x = x²
inner: 5+4 = 9
outer: 5*4 = 20
3. 2x²-10x+8=0
2(x²-5x+4)
2(x-1)(x-4)