Advertisement Remove all ads
Advertisement Remove all ads
Sum
factorise: 7b2 - 5b+ 1
Advertisement Remove all ads
Solution
7b2 - 5b+ 1
= 7b2 - 7b - b +1
= 7b(b - 1) - 1(b - 1)
= (b - 1)(7b - 1)
Concept: Factorisation by Grouping
Is there an error in this question or solution?
Advertisement Remove all ads
APPEARS IN
Advertisement Remove all ads