find (2x+5)^2-(2x-5)^2 using a suitable identity
Answers
Answered by
0
Answer:
t
Step-by-step explanation:
Answered by
0
Answer: 0
Step-by-step explanation:
(2x + 5)^2 - (2x + 5)^2
Using identity a^2 - b^2= (a+b)(a-b), we get:
[(2x + 5)+(2x + 5)] × [(2x + 5) - (2x + 5)]
= (2x + 5 + 2x + 5) × (2x + 5 - 2x - 5)
= (4x + 10) × (0)
= 0
Similar questions