factorise using middle term split
Answers
Answered by
1
Answer:
- 2x²–15x+25
Here, sum = -15
product= 25×2=50
factors of 50=1,2,5,5
pair of no.s that satisfy this: –10,–5
So, 2x²–10x–5x+25
2x(x–5)–5(x–5)
(2x–5)(x–5)
.
.
- 3x²–x–14
Sum=–1
Product=–14×3=–42
Factors of 42=1,2,7,3
Pair of no.s that satisfy this: –7, 6
So, 3x²+6x–7x–14
3x(x+2)–7(x+2)
(3x–7)(x+2)
Similar questions
Science,
5 months ago
Geography,
5 months ago
Computer Science,
5 months ago
English,
10 months ago
Social Sciences,
10 months ago
English,
1 year ago