PLEASE HELP WITH THESE QUESTIONS

What is the solution to x2 + 3x + 25 = 0?

What are the zeroes of y = x2 + 14x +40 ?

What is the solution to the following equation?
x^2 + 7x – 18 = 0

Respuesta :

I'll work on the first one soon....
Ver imagen paulancka
For the second question answer -10 and -4
The second one factor two numbers that add to 14 and when you multiply the numbers you get 40. Are 10 and 4
(X+10)(X+4)
X+10=0
Subtract 10 on both sides
X=-10. Answer
X+4=0 subtract 4
X=-4
3rd question X= 2 and X= -9

Two numbers that add to -7 and multiply to -18 are -2+9=-7. -2 times 9=-18
(X-2)(X+9)=0
X-2=0 X= 2. X+9=0 X=-9