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Get Answers to all your Questions
If (x - 2) and (x - 1/2) are factors of px² + 5x + r, then show that p = r
Answers (1)
f(x) = px² + 5x + r
f(2) = 4p + 5x2 + r =0
4p+r+10 =0 ...(i)
f(1/2) = p/4 + 5/2 + r =0
p+4r+10 =0...(ii)
Equation (i) - Equation(ii)
3p-3r=0
p=r
Hence Proved
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