Question

Write the following cube in expanded form:

( 2a+ 5b )3'​

Answer 1

Step-by-step explanation:

(a+b)^3 = a^3 + b^3 +3ab (a+b)

(2a+5b)^3 = (2a)^3+(5b)^3+3 (2a)(5b)(2a + 5b)

= 8a^3 + 125b^3 +30ab (2a+5b)

= 8a^3 + 125b^3+60a^2b+150ab^2

Answer 2

Hope this will help you