(2x-3y)²(2x+3y)²(4x²+9y²)² Simplification

(2x-3y)²(2x+3y)²(4x²+9y²)² Simplification

(2x-3y)²(2x+3y)²(4x²+9y²)²
= [(2x-3y)(2x+3y)]²(4x²+9y²)²
=(4x²-9y²)²(4x²+9y²)²
= [(4x²-9y²)(4x²+9y²)]²
=(the fourth power of 16x - the fourth power of 91y) & sup2;