Question

How do you solve `-2x^2 - 6x - 4 = 0`?

Answer 1

`x=-2" or "x=-1`

Explanation:

`"take out a "color(blue)"common factor "-2`

`rArr-2(x^2+3x+2)=0`

`"the factors of + 2 which sum to + 3 are +1 and + 2"`

`rArr-2(x+1)(x+2)=0`

`"equate each of the factors to zero and solve for x"`

`x+2=0rArrx=-2`

`x+1=0rArrx=-1`