Solve by completing the square.j2+4j=29Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.j= _____ or j= _____
Q. Solve by completing the square.j2+4j=29Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.j= _____ or j= _____
Write equation in form: Write the equation in the form of j2+bj=c. The given equation is already in this form: j2+4j=29.
Move constant term: Move the constant term to the right side of the equation.Subtract 29 from both sides to isolate the j terms.j2+4j−29=0j2+4j=29
Complete the square:Complete the square by adding the square of half the coefficient of j to both sides.The coefficient of j is 4, so half of it is 2, and the square of 2 is 4.Add 4 to both sides of the equation.j2+4j+4=29+4j2+4j+4=33
Factor left side: Factor the left side of the equation.The left side is a perfect square trinomial.(j+2)2=33
Take square root: Take the square root of both sides of the equation.Remember to consider both the positive and negative square roots.(j+2)2=±33j+2=±33
Solve for j: Solve for j by isolating the variable.Subtract 2 from both sides of the equation.j+2−2=±33−2j=−2±33
Calculate decimal values: Calculate the approximate decimal values of j, rounded to the nearest hundredth.j≈−2+33≈−2+5.74≈3.74j≈−2−33≈−2−5.74≈−7.74
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