Question

Expand the following: (a) (8 + 22x²)²​

Answer 1

Answer:

The answer is $484x^4+352x^2+64$

Step-by-step explanation:

Using $(a+b)^2=a^2+2ab+b^2$

We have

  $(8+22x^2)^2=(8)^2+2(8)(22x^2)+(22x^2)^2$

                     $=64+352x^2+484x^4$

                     $=484x^4+352x^2+64$