Question

find the solutions to the equation below. Check all that apply.
x^2+14x+40=0
A.X=-10
B.x=6
C.x=-8
D.x=-4
E.x=4
F. X=3

Answer 1

\[(x+4) (x+10) = 0\]What do you think?

Answer 2

c

Answer 3

Not quite... From the factored out equation, the addition sign means the solutions will be negative...

Answer 4

C or D are the only negative ones

Answer 5

What about A?

Answer 6

yup and a

Answer 7

OKay, so what's the answer? Don't guess!

Answer 8

let me factor it

Answer 9

What two numbers when added together make 14 and when multiplied together make 40?

Answer 10

Dude, it is already factored.....
\[x^2+14x+40=0 \]\[(x+4)(x+10)=0 \]

Answer 11

4 nd 10

Answer 12

positive or negative? what letters?

Answer 13

D nd A

Answer 14

YES! CORRECT