Q. Let x1 and x2 be solutions to the equation shown, with x1>x2. What is the value of x1+x2? 16x2−8x−3=0
Recognize Equation Type: Recognize that the equation 16x2−8x−3=0 is a quadratic equation in the standard form ax2+bx+c=0, where a=16, b=−8, and c=−3.
Sum of Roots Formula: Recall the sum of the roots formula for a quadratic equation ax2+bx+c=0, which states that the sum of the roots x1+x2 is equal to −ab.
Apply Formula: Apply the sum of the roots formula to the given equation. Substitute a=16 and b=−8 into the formula to find x1+x2.
Calculate Sum: Calculate the sum of the roots using the formula x1+x2=−16−8.
Simplify Fraction: Simplify the fraction to get x1+x2=21.