Solve by completing the square.−3w2+42w−33=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.w=□ or w=□
Q. Solve by completing the square.−3w2+42w−33=0Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.w=□ or w=□
Write Equation Form: Write the equation in the form of aw2+bw=c. The given equation is −3w2+42w−33=0.
Divide and Simplify: Divide the entire equation by −3 to simplify the coefficients.−3w2/−3+42w/−3−33/−3=0/−3w2−14w+11=0
Move Constant Term: Move the constant term to the right side of the equation.w2−14w=−11
Complete the Square: Find the value to complete the square.Take half of the coefficient of w, square it, and add it to both sides of the equation.(−14/2)2=49w2−14w+49=−11+49w2−14w+49=38
Factor and Simplify: Factor the left side of the equation and simplify the right side.(w−7)2=38
Take Square Root: Take the square root of both sides of the equation.(w−7)2=±38w−7=±38
Isolate Variable: Solve for w by isolating the variable.w=7±38
Calculate Approximate Values: Calculate the approximate decimal values of w, rounded to the nearest hundredth.w≈7±6.16w≈7+6.16 or w≈7−6.16w≈13.16 or w≈0.84
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