Multiply by

Evaluate 0.1y(0.1x⁵ +0.1y).

Find the product 24x²(1-2x) and evaluate its value for x=3

Find the product (3x-5y)(x+y)and verify the result for x=-1, y=-2:

Write the following squares of binomials as trinomials:

(i) (x+2)² (ii) (8x+3b)²