Question

please solve it I will mark you as a brainliest expand (3×+5) (3×-5​

Answer 1

Answer:

expansion of (3x+5)(3x-5) is

(   3x   -   5   )   (   3x   +   5   )

:) :) :)

The anwer is

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

=(3x)^2-(5^2

=9x^2-25

pls mark as brainliest............

Step-by-step explanation:

Answer 2

Answer:

9x²-25

Step-by-step explanation:

Given,

(3x+5)(3x-5)

We have a formulae : (a+b)(a-b) = (a)²-(b)²

So,

(3x+5)(3x-5) = (3x)²- (5)²

= 9x² - 25