Solve by completing the square.p2+4p=13Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.p= _____ or p= _____
Q. Solve by completing the square.p2+4p=13Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.p= _____ or p= _____
Rewrite Equation: Rewrite the equation in the form of p2+bp=c. We have the equation p2+4p=13. To complete the square, we need to have a constant term on the left side that makes it a perfect square trinomial.
Add Constant Term: Add the square of half the coefficient of p to both sides.The coefficient of p is 4, so half of it is 2. The square of 2 is 4.Add 4 to both sides to complete the square.p2+4p+4=13+4p2+4p+4=17
Factor and Simplify: Factor the left side as a binomial square and simplify the right side.The left side is now a perfect square trinomial and can be factored as (p+2)2.(p+2)2=17
Take Square Root: Take the square root of both sides.To solve for p, we take the square root of both sides.(p+2)2=±17p+2=±17
Isolate Variable: Solve for p by isolating the variable.Subtract 2 from both sides to isolate p.p=−2±17
Calculate Approximate Values: Calculate the approximate decimal values of p, if necessary.Since 17 is approximately 4.12, we can find the approximate values of p.p≈−2+4.12 or p≈−2−4.12p≈2.12 or p≈−6.12
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