Question

simplify =(3x+5)²-(3x-5)²​

Answer 1

Answer:

$60x$

Step-by-step explanation:

( 3 x + 5 )² - ( 3 x - 5 )²

9x² + 30x + 25 - (3x - 5)²

9x² + 30x + 25 - (9x² - 30x + 25)

9x² + 30x + 25 - 9x² + 30x - 25

30x + 25 + 30x - 25

60x + 25 - 25

60x

hope it will help u ❣️

Answer 2

Answer:

60x

Step-by-step explanation:

1. $(3x+5)^{2}$-$(3x-5)^{2}$
2. $(a+b)^{2}$$-(a-b)^{2}$
3. {$(3x)^{2}$+$(5)^{2}$+2(3x)(5)}{$(3x)^{2}$-$(5)^{2}$+2(3x)(5)
4. $(9x^{2}+25+30x)-(9x^{2} -25+30x)$  
5. 9x square and -9x square CANCEL
6. +25 and -25 CANCEL
7. 30x+30x
8. 60x