Question

(3x-10y) whole square​

Answer 1

Answer:

9x^2+100y^2-60xy

Step-by-step explanation:

(3x-10y)^2

We can solver this by using the identity,

(a-b)^2=a^2+b^2-2ab

(3x-10y)^2=(3x)^2+(10y)^2-2(3x)(10y)

=9x^2+100y^2-60xy