Question

What is the product of (6x + 2y + 4 ) ( 36x2 + 4y2 + 16 - 12xy - 8y - 24 x )

Answer 1

Answer:

we know,

(a+b+c)(a^2+b^2+c^2-ab-bc-ca)=a^3+b^3+c^3-3abc

so,

(6x+2y+4)(36x^2+4y^2+16-12xy-8y-24x)

=(6x)^3+(2y)^3+(4)^3-3.6x.2y.4

=216x^3+8y^3+64-144xy