Question

obtain all the zeros of x power 4 + 10 x cube + 35 X square + 50 X + 24 if 2 zeros of -1&-2

Answer 1

x^4 + 10x^3 + 35x^2 + 50x + 24
If two zeroes are (-1) , (-2)
Then...
(x+1)(x+2)
x^2 + 2x + x +2
x^2 + 3x + 2
Divide this equation from the real one...
Then solve that equation....
You will get other two zeroes.....

Answer 2

-1 and -2 are the zeros...
so, the factors would be (x+1) and (x+2)
This method is known as vanishing method.
where you first write 3rd line before writing 2nd line still leaving space of it as third pin provides the 3nd line answer. This trick is also applied in 6th and 7th lines. This method is usually used when u know don't know two zeros out of the total zeros present in the equation. The zeros therefore of this equation would be -4,-3,-2,-1......