Varied factorisable equations

Varied factorisable equations

Secondary 2
TGM Original Questions

Solve each of the following equations.

  1. \(a^2-5a-36=0\)
  2. \(2b^2+7b+3=0\)
  3. \(5-6c-8c^2=0\)
  4. \(d(2d+7)=15\)
  5. \(16e^2-81=0\)
  6. \((3f+2)^2=64\)
  7. \(\frac{8g}{3}=\frac6g\), \(g\ne0\)
  8. \(h(h-9)+5=-9\)

Solution:

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Answer:(a) \(a=9,-4\); (b) \(b=-3,-\frac12\); (c) \(c=\frac12,-\frac54\); (d) \(d=\frac32,-5\); (e) \(e=\pm\frac94\); (f) \(f=2,-\frac{10}{3}\); (g) \(g=\pm\frac32\); (h) \(h=2,7\).

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