Problem: When simplified 1+(2x2x4−1​)2​ equals:
Answer Choices:
A. 2x2x4+2x2−1​
B. 2x2x4−1​
C. 2x2+1​​
D. 2​x2​
E. 2x2​+2x21​
Solution:
1+(2x2x4−1​)2​=4x44x4+x8−2x4+1​​=(2x2x4+1​)2​=2x2x4+1​=2x2​+2x21​.