Multiple choice

Write the following in the standard format of a quadratic equation. $(m\, +\, 4)\, (m\, -\, 10)\, =\, 0$

  1. $m^{2}\, -\, 6m\, -\, 40\, =\, 0$
  2. $m^{2}\, -\, 6m\, +\, 40\, =\, 0$
  3. $m^{2}\, +\, 6m\, -\, 40\, =\, 0$

  4. None of these
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A Correct answer
Explanation

Expand (m + 4)(m - 10) = m^2 - 10m + 4m - 40 = m^2 - 6m - 40. Setting this to 0 gives m^2 - 6m - 40 = 0.

AI explanation

Expand the given equation (m + 4)(m - 10) = 0 using the distributive property. You get m^2 - 10m + 4m - 40 = 0. Combining the like terms gives the standard format m^2 - 6m - 40 = 0.

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