數學粗話

創業賺錢狗

Simplify 7/56

Problem:

Simplify $ \frac{7}{56} $

Solution:

$ \frac{1}{8} $

312 is 65% of what number

Problem:

312 is 65% of what number?

Solution:

480

$ \frac{2x^2}{7} \times \frac{3}{4x^2} $

Problem:

$ \frac{2x^2}{7} \times \frac{3}{4x^2} $

Solution:

$ \frac{3}{14} $

Simplify

Problem:

$ (\frac{a^3}{m})^{-4} $

Solution:

$ (\frac{a^3}{m})^{-4} = \frac{m^4}{a^{12}} $

(x-3)(x-2)

Problem:

(x-3)(x-2)

Solution:

x = 3 or x = 2

Expanding give $ x^2 - 5x + 6 $