Question

find the product using suitable identies =)
(4+5x)( 4-5x)​

Answer 1

Answer:

(4)²-(5x)²

Step-by-step explanation:

(4+5x)(4+5x)

(4)²-(5x)²

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Answer 2

Answer:

16 - 25x^2.

Step-by-step explanation:

As we know that,

(a+b)^2 + (a-b)^2.

So,

(4+5x)(4-5x).

: (4)^2 - (5x)^2.

: 16 - 25x^2.

Hope it will be helpful!!..