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SEAMO 2020 — Paper E — Grade 9–10 Question 19

SEAMO · SEAMO 2020 — Paper E — Grade 9–10

Question 19

Real $a,b$ satisfy $ab\ne1$, $3a^2-4a-5=0$, $5b^2+4b-3=0$. Evaluate $\frac{(a+1)(b+1)}b$.
  1. $\frac12$
  2. $\frac23$
  3. $\frac34$
  4. $1$
  5. None of the above