factorise 5a²–ab–4b²
Answers
Answered by
3
Answer:
5a²-ab-4b²
= 5a² -5ab+4ab -4b²
= 5a( a-b) +4b(a-b)
= (a-b ) ( 5a +4b)
Answered by
4
Answer:
(5a+4b)(a-b)
Step-by-step explanation:
5a²-b-4b²
5a²-5ab+4ab-4b²
5a(a-b)+4b(a-b)
(5a+4b)(a-b)
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