factorise 49a²-100b²
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Answered by
1
Answer:
(7a+10b)(7a-10b)
Step-by-step explanation:
a²-b²=(a+b)(a-b)
a=7a
b=10b
=(7a+10b)(7a-10b)
Answered by
1
Answer:
(7a + 10b) (7a - 10b) is the correct answer
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