Question

(625a^4-81b^4)×(5a+3b)​

Answer 1

Answer:

$(5a)^{2}$+$(3b)^{2}$)(5a+3b)(5a-3b)(5a+3b)

Step-by-step explanation:

(625$a^{4}$-81$b^{4}$)(5a+3b)

= ($(5a)^{4}$-$(3b)^{4}$)(5a+3b)

=($(5a)^{2}$+$(3b)^{2}$)($(5a)^{2}$-$(3b)^{2}$)(5a+3b)

=($(5a)^{2}$+$(3b)^{2}$)(5a+3b)(5a-3b)(5a+3b)

formula used $a^2-b^2$ $= (a+b)(a-b)$