Question

factorise (2x+5y)²-1

Answer 1

Hi there !!

The following expression (2x + 5y)² - 1
can be factorised by using the algebraic identity a² - b² = (a - b)(a + b)

We know that ,
the square of 1 is also 1 and the square root of 1 is also one

Therefore,

(2x + 5y)² - 1

= (2x + 5y - 1)(2x + 5y + 1) [ Answer ]

Answer 2

Answer:

(2x+5y-1) (2x+5y+1)

Step-by-step explanation:

i hope answer is helpful for you