Special products and algebraic identities
Algebraic expressions · Mathematics
Study notes
Q: Expand (3x + 4)^2 and compute 103^2 mentally. Part A: (3x + 4)^2 = (3x)^2 + 2(3x)(4) + 4^2 = 9x^2 + 24x + 16. Part B: 103^2 = (100 + 3)^2 = 10000 + 600 + 9 = 10609.