Q. For the function, f(x)=x2−3x+9Find when f(x)=7.x=□
Set Equation Equal: To find the values of x for which f(x)=7, we need to solve the equation f(x)=7 using the given function f(x)=x2−3x+9.Set f(x) equal to 7 and solve for x:x2−3x+9=7
Subtract Constant Term: Subtract 7 from both sides of the equation to move the constant term to the left side:x2−3x+9−7=0x2−3x+2=0
Factor Quadratic Equation: Now, we need to factor the quadratic equation or use the quadratic formula to find the values of x. Let's try to factor it first:(x−1)(x−2)=0
Solve for x: Set each factor equal to zero and solve for x:x−1=0 or x−2=0x=1 or x=2
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