Q. Rewrite the function by completing the square.h(x)=2x2+11x+15h(x)=□(x+□)2+□
Identify coefficient of x2: Identify the coefficient of x2, which is 2, and factor it out from the x terms.h(x)=2(x2+(11/2)x)+15
Complete the square: To complete the square, we need to add and subtract the square of half the coefficient of x inside the parentheses. The coefficient of x is 211, so half of that is 411. Squaring 411 gives us (411)2=16121.h(x)=2(x2+(211)x+16121−16121)+15
Add and subtract: Add and subtract 16121 inside the parentheses, but remember to multiply the subtracted term by 2 because we factored 2 out in the first step.h(x)=2(x2+211x+16121)−2(16121)+15
Simplify the equation: Simplify the equation by combining like terms outside the parentheses.h(x)=2(x+411)2−2(16121)+15h(x)=2(x+411)2−8121+15
Convert 15 to fraction: Convert 15 to a fraction with a denominator of 8 to combine with −8121. 15=8120h(x)=2(x+411)2−8121+8120
Combine the fractions: Combine the fractions.h(x)=2(x+411)2−81
Write final completed square form: Write the final completed square form of the function. h(x)=2(x+411)2−81
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