Question

Find the following by using Identity-I.
(0.2x + 1.5y)²​

Answer 1

Answer:

identity will be

(a+b)²=a²+b²+2ab

so answer will be,

=0.04x²+2.25y²+2(0.2x) (1.5y)

=0.04x²+2.25y²+0.6xy