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Factor completely.

64x^(2)-144 x+81=

+=^(-x)

Factor completely.\newline64x2144x+81= 64 x^{2}-144 x+81=

Full solution

Q. Factor completely.\newline64x2144x+81= 64 x^{2}-144 x+81=
  1. Recognize expression type: Recognize the type of expression we are dealing with.\newlineThe expression 64x2144x+8164x^2 - 144x + 81 is a quadratic expression in the form ax2+bx+cax^2 + bx + c. We will attempt to factor it as a perfect square trinomial, which has the form (ax+b)2(ax + b)^2.
  2. Check for perfect square trinomial: Check if the expression is a perfect square trinomial.\newlineFor an expression to be a perfect square trinomial, the first and last terms must be perfect squares, and the middle term must be twice the product of the square roots of the first and last terms.\newline64x264x^2 is a perfect square (8x)2(8x)^2, and 8181 is a perfect square (9)2(9)^2. The middle term, 144x-144x, should be equal to 2×(8x)×(9)2 \times (8x) \times (9) if the expression is a perfect square trinomial.
  3. Verify middle term: Verify the middle term.\newlineCalculate 2×(8x)×(9)2 \times (8x) \times (9) to see if it equals 144x-144x.\newline2×(8x)×(9)=144x2 \times (8x) \times (9) = 144x\newlineHowever, we need 144x-144x, so the middle term matches the requirement for a perfect square trinomial.
  4. Write factored form: Write the factored form of the expression.\newlineSince the expression is a perfect square trinomial, it can be factored as (ax+b)2(ax + b)^2, where axax is the square root of the first term and bb is the square root of the last term, with the sign of the middle term.\newlineThe factored form is (8x9)2(8x - 9)^2.