Multiply the binomials `(a+3b)` and `(x+5)`

Multiply the binomials (2x+5) and (4x-3)

Multiply the binomials (3/4 a^2+ 3b^2) and 4(a^2-2/3 b^2)

Multiply the binomials (y-8) and (3y-4)

Multiply the binomials (2.5l-0.5 m) and (2.5l+0.5 m)

Multiply the binomials (2pq+3q^2) and (3pq-2q^2)

The second ,third and fourth terms in the binomial expansion (x+a)^n are 240,720 and 1080 respectively.Find x,a,n.

Sum of all coefficients in the binomial expansion of (x^(2)+x-3)^(319) is

Let nge5 and bne0 . In the binomial expansion of (a-b)^(n) , the sum of the 5^(th) and 6^(th) terms is zero. Then a//b equals

A two digit number is obtained by either multiplying the sum of digits by 8 and then subtracting 5 or by multiplying the difference of digits by 16 and adding 3. Find the number.

The fourth term in the binomial expansion of (x^(2)+(2)/(x^(2)))^(n) is independent of x , then n=