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Indices (Equation)

(CIE 0606/2020/w/11/Q3)
(a) Write p(qr2)13(q3p)1r3 in the form paqbrc, where a,b and c are constants. [3]

(b) Solve 6x235x13+1=0.

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*********math solution*************

(a) p12(qr2)13(q3p)1r3=p12q13r23(q3p)r3=p12+1q13+3r233=p32q103r73

(b) 6x235x13+1=06(x13)25(x13)+1=0(3x131)(2x131)=03x13=1(or)2x13=1x13=13(or)x13=12x=127(or)x=18


**********end math solution********************

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