Exercise 4.4 (PCTB)

1. Find the square root of the following polynomials by factorization method (i) \( x^2 – 8x + 16 \) \[x^2 – 8x + 16 = (x – 4)^2\] \[\sqrt{x^2 – 8x + 16} = x – 4\] (ii) \( 9x^2 + 12x + 4 \) \[9x^2 + 12x + 4 = (3x + 2)^2\]…