(4 x + 7Y) (4 x - 7y) using identities
Answers
Answered by
1
Answer:
= 16x ^2 + 49y^2
Step-by-step explanation:
4x-7y)(4x-7y
=(4x-7y)^2
= 16x^2 + 49y^2 - 56xy answer.
using identity
(a-b)^2=a^2 +b^2 -2 ab
Answered by
0
Answer: 16x²- 49y²
Step-by-step explanation:(4 x + 7Y) (4 x - 7y)
As we know that (a²-b²)=(a+b)(a-b)
From above we can write (4 x + 7Y) (4 x - 7y) as [(4x)²- (7y)²]
(4 x + 7Y) (4 x - 7y) = [(4x)²- (7y)²]
= 16x²- 49y²
Hope it helped!
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