Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Find the square. Simplify your answer.\newline(2k1)2(2k - 1)^2

Full solution

Q. Find the square. Simplify your answer.\newline(2k1)2(2k - 1)^2
  1. Identify binomial and formula: Identify the binomial to be squared and the special case formula to use.\newlineThe given expression is \(2k - 11)^22\, which is in the form of a - b)^\(2\.\newlineSpecial case: a - b)^\(2 = a^22 - 22ab + b^22\
  2. Identify values of aa and bb: Identify the values of aa and bb in the binomial. Compare (2k1)2(2k - 1)^2 with (ab)2(a - b)^2. a=2ka = 2k b=1b = 1
  3. Apply binomial square formula: Apply the square of a binomial formula to expand (2k1)2(2k - 1)^2.(2k1)2=(2k)22(2k)(1)+(1)2(2k - 1)^2 = (2k)^2 - 2(2k)(1) + (1)^2
  4. Simplify each term: Simplify each term in the expansion.\newline(2k)22(2k)(1)+(1)2(2k)^2 - 2(2k)(1) + (1)^2\newline= (2k2k)(22k)+(11)(2k \cdot 2k) - (2 \cdot 2 \cdot k) + (1 \cdot 1)\newline= 4k24k+14k^2 - 4k + 1

More problems from Multiply two binomials: special cases