Question

w squared+3w-4 can you help me on this

Answer 1

This how you would factor it. f(x)=(W+4)(W-1) The zeroes of the function =-4 and 1

Answer 2

Do you want to factor this?
If so, look at the third term (the minus four). Find all the factors of 4:
1,4
2,2
Now notice the sign of 4 is minus. This means the difference between one of the pairs has to be the +3 (from the second term 3w)
The second pair 2,2 won't work: 2-2 = 0 (not 3)
But 1-4= -3. Except you want +3, so try 4-1= 3 Yes, it works.
So the pair you want is 4, -1
and the factors are: (x+4)(x-1)
Let's check by multiplying it out: x*x + x*-1+4*x+4*-1= x^2 +3x -4
Yes, it worked.