7x-3 এবং 7x+5 এর গুনফল কতো?
Answers
Answered by
4
Answer:
7*3 7+5 = 89
hope it helps
Answered by
0
Answer:
(7x-3)(7x-5)
Explanation:
Ques : ( 7x-3 ) (7x+5 )
= 49x^2 - 35x - 21x -15
= 7x( 7x - 5 ) - 3( 7x - 5 )
= (7x - 3) (7x - 5 )
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