Latest exam Aptitude Question SOLUTION: my instructor told me to substitute and then use logarithm but im not quite sure how 10^2x-2(10^x)=0 to substitute like she said i used 10^x as y so y^2-2(y)=0

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(#M40045596) EXAM Numerical Ability question Keep an EYE

my instructor told me to substitute and then use logarithm
but im not quite sure how

10^2x-2(10^x)=0
to substitute like she said i used 10^x as y
so
y^2-2(y)=0
y^2-2y=

Asked In exam (10 years ago)

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