Q. The equation ax−224x2+25x−47=−8x−3−ax−253 is true for all values of , where is a constant.x=a2aWhat is the value of ?
Write Equation Simplify: Write down the given equation and simplify it.The given equation is:(24x2+25x−47)/(ax−2)=−8x−3−53/(ax−2)We can combine the terms on the right side of the equation:−8x−3−53/(ax−2)=−8x−3−53/(ax−2)This simplifies to:−8x−3−53/(ax−2)
Combine Right Side Terms: Since the equation is true for all values of x (except x=a2), the numerators of the rational expressions on both sides must be equal.This means we can set up the equation:24x2+25x−47=(−8x−3)(ax−2)−53
Set Up Equation Expand: Expand the right side of the equation.(−8x−3)(ax−2)−53=−8ax2+16x−3ax+6−53Combine like terms:−8ax2+(16−3a)x−47
Expand Right Side: Since the expressions are equal for all x, the coefficients of the corresponding powers of x must be equal.This gives us a system of equations:For x2 terms: 24=−8aFor x terms: 25=16−3aFor constant terms: −47=−47 (This is already satisfied and doesn't give us information about a.)
Solve System Equations: Solve the first equation from the system for a.24=−8aDivide both sides by −8:a=−−824a=3
Check Solution: Check the solution by substituting a=3 into the second equation.25=16−3a25=16−3(3)25=16−925=7This is not true, which means there is a math error in the previous steps.
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