Question

Find the value of the expression (9x²-25)--(9x*+25)​

Answer 1

Step-by-step explanation:

(9x^2 - 25x) (9x^2 + 25x)

{ (3x)^2 - 5^2 } { (3x)^2 + 5^2}

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

(3x+5)(3x-5){ (3x)^2 + 5^2}

(a+b)^2 -2ab = a^2 + b^2

(3x+5)(3x-5)(3x+5)^2 - 2*3x*5