Factorise it :-
4a²-12a+9-49b²
Answers
Answered by
0
Answer:
Given, 4a
2
−12a+9−49b
2
=(2a)
2
−2(2a)(3)+3
2
−(7b)
2
=(2a−3)
2
−(7b)
2
Now by using a
2
−b
2
=(a+b)(a−b)
=(2a−3+7b)(2a−3−7b)
Step-by-step explanation:
Answered by
2
Answer:
(2a - 3 + 7b) (2a - 3 - 7b)
Step-by-step explanation:
4a²- 12a + 9 - 49b²
= (2a)² - 2.2a.3 + 3² - (7b)²
= (2a - 3)² - (7b)²
= (2a - 3 + 7b) (2a - 3 - 7b)
Ans:-(2a - 3 + 7b) (2a - 3 - 7b)
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