140s Classroom → 40s Sub-90 Target27-Q Mathematics 1 Mock
Archetype Sub-90 Dry-Wipe Invariant (Algebraic Subject Rearrangement, Rational Fractions & Completing the Square): For y = (ax+b)/(cx+d), the inverse rearrangement swaps (a, d) with a sign flip: x = (-dy+b)/(cy-a). For p(x+q)²+r, evaluate at x=0 and x=-q to find r in 10 seconds without full expansion.
sub90 ESATARCH-M1-07: Algebraic Subject Rearrangement, Rational Fractions & Completing the SquareMathematics 1
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SUB-90 ZONE (<35S)
0.0s35s Sub-9090s ESAT Budget150s Classroom
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Mathematics 1•ARCH-M1-07•Standard 5-Option
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