Expand `(x+2y)^5` using binomial theorem.

Expand (2x+3y)^4

Expand the following numbers using exponents. 1025.63.

Expand the following numbers using exponents. 1256.249

Examine whether the following systems of linear equations are consistent or not. If consistent, solve the system by Cramer's rule or by using some other method : 4x-5y=0, 2x+3y=0

Using binomial theorem prove that 4^n -3n-1 is divisible.by 9 for n in N

Classify the following polynomials as monomials, binomials, trinomials. -z+5,x+y+z, y+z + 100, ab-ac,17

If the points (2,0),(0,5) and (x,y) are collinear then show that x/2+y/5=1 .