Advertisements
Advertisements
Question
factorise: 1 - 18x - 63x2
Sum
Advertisements
Solution
1 - 18x - 63x2
= 1 - 21x + 3x - 63x2
= 1 (1 - 21x) + 3x (1 - 21x)
= (1 - 21 x) (1 + 3x)
shaalaa.com
Factorisation by Grouping
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Factorise by the grouping method : a4 - 2a3 - 4a + 8
Factorise by the grouping method : a2 + b - ab - a
Factorise using the grouping method :
x (6x - 5y) - 4 (6x - 5y)2
Factorise : a3 -a2 +a -1
Factorise : x2 - (b - 2)x - 2b
Factorise : ax + 2bx + 3cx - 3a - 6b - 9c
factorise: (x - 2y)2 - 12(x - 2y) + 32
factorise: 8 + 6(a + b) - 5(a + b)2
factorise: 5x2 - 4xy - 12y2
factorise: ax2 + b2y - ab2 - x2y
