Expand the following using the binomial theorem and pascal’s triangle.
(x + 2)^6
(x − 4)^4
(2x + 3)^5
(2x − 3y)^4
in the expansion of (3a + 4b)^8, which of the following are possible variable terms? explain your reasoning.
a^2b^3; a^5b^3; ab^8; b^8; a^4b^4; a^8; ab^7; a^6b^5

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

what is the rest of the question? ?

the answer is  

d.

8 m

hope you got it down chief.