Q. Which equation has the same solution as x2+17x−18=6 ?(x+8.5)2=−48.25(x−8.5)2=−48.25(x−8.5)2=96.25(x+8.5)2=96.25
Simplify the equation: First, let's simplify the given equation by moving all terms to one side to set the equation to zero.x2+17x−18−6=0x2+17x−24=0
Complete the square: Now, we need to find an equation that has the same solutions as x2+17x−24=0. To do this, we can complete the square to transform the given quadratic equation into a form that matches one of the choices.First, we calculate the value needed to complete the square. We take half of the coefficient of x, which is 217, and square it.(217)2=8.52=72.25
Add and subtract value: Next, we add and subtract this value inside the equation to complete the square.x2+17x+72.25−72.25−24=0Now, we group the perfect square trinomial and the constants.(x+8.5)2−72.25−24=0
Group the terms: Combine the constants to simplify the equation further.(x+8.5)2−96.25=0
Combine the constants: Finally, we can rearrange the equation to match one of the choices.(x+8.5)2=96.25This equation has the same solution as the original equation x2+17x−18=6.