Question

How do you solve the equation `(x- 10)(x+ 5)= 0`?

Answer 1

`x=-5" or "x=10`

Explanation:

`"using the principal that if "`

`axxb=0`

`"then "a=0" or "b=0" or "a=0,b=0`

`"here we have a product of factors equal to zero"`

`"equate each factor to zero and solve for x"`

`x+5=0rArrx=-5`

`x-10=0rArrx=10`