lelokumnandi456
lelokumnandi456 lelokumnandi456
  • 14-04-2021
  • Mathematics
contestada

b) solve for x if x² +3x - 4 <0​

Respuesta :

jtudor
jtudor jtudor
  • 14-04-2021

Answer:

x=4,−1

Step-by-step explanation:

hope i helped

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Answer Link
viktoria80
viktoria80 viktoria80
  • 14-04-2021
You need to find the two numbers that add to -4 and multiply to 3
Those are-3 and 1-
(X-3) (x-1)
X=3 X=1

Now let’s check to make sure that when plugged in the answer is over 0.
3^2+3(3)-4=
9+9-4=14
14 is greater than 0
✅

1^2+3(1)-4=
1+3-4=0
0 is not greater than 0

So x is 3
Answer Link

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