solution
STEP1: Equation at the end of step 1
(2x • (5x - 2)) + (2x + 1) • (8 - 5x)
STEP2: Equation at the end of step 2
2x • (5x - 2) + (2x + 1) • (8 - 5x)
..............................................................................
Final result :
7x + 8
