Show that x²+6x+17 can be expressed in the form (x+p)²+q Find the integer values of p and q

Mathematics

ScanSolve AI Answer

Answer

(x+3)2+8(x+3)^2 + 8

p=3p = 3

q=8q = 8

Step-by-step solution

4 steps

To express x2+6x+17x^2 + 6x + 17 in the form (x+p)2+q(x+p)^2 + q, we will use the method of completing the square.

  1. Identify the coefficient of xx.

    The expression is x2+6x+17x^2 + 6x + 17. The coefficient of xx is 6.

  2. Complete the square for the x2x^2 and xx terms.

    Take half of the coefficient of xx and square it: (62)2=32=9\left(\frac{6}{2}\right)^2 = 3^2 = 9.
    Add and subtract this value to the expression:

    x2+6x+9−9+17x^2 + 6x + 9 - 9 + 17
  3. Group the perfect square trinomial and simplify the constants.

    The first three terms form a perfect square: (x+3)2(x+3)^2.

    (x2+6x+9)−9+17(x^2 + 6x + 9) - 9 + 17 (x+3)2+8(x+3)^2 + 8
  4. Compare with the form (x+p)2+q(x+p)^2 + q.

    By comparing (x+3)2+8(x+3)^2 + 8 with (x+p)2+q(x+p)^2 + q, we can identify the values of pp and qq.

    p=3p = 3 q=8q = 8

    The expression is (x+3)2+8\boxed{(x+3)^2 + 8}.
    The integer values are p=3\boxed{p = 3} and q=8\boxed{q = 8}.

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