Question

using the appropriate identities find the product of the following (2x²+5)(2x²+5)​

Answer 1

$(2x^2+5)(2x^2+5)\\\\=(2x^2+5)^2\\\\=(2x^2)^2 +2(2x^2)(5) + 5^2\\\\=4x^4 + 20x^2 +25$