150s Classroom → 40s Sub-90 Target27-Q Mathematics 2 Mock
Archetype Sub-90 Dry-Wipe Invariant (Binomial Expansion (a + bx)^n Term Isolation, Constant Terms & Multi-Bracket Coefficients): Never expand the full bracket: write the general term T_r = nCr * a^(n-r) * b^r * x^(p(n-r) + qr), set the exponent p(n-r) + qr equal to the target power (0 for constant term), solve for r in 5 seconds, and evaluate only that single term.
sub90 ESATARCH-MM-13: Binomial Expansion (a + bx)^n Term Isolation, Constant Terms & Multi-Bracket CoefficientsMathematics 2
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SUB-90 ZONE (<35S)
0.0s35s Sub-9090s ESAT Budget150s Classroom
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Mathematics 2•ARCH-MM-13•Standard 5-Option
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