Answer:
I think it is -5+root-7/2 & -5-root-7/2
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
Answer:
x = -7, 7
Step-by-step explanation:
- 2x²-50 = x² -1
- 2x²-x²-50+1 = 0
- x²-49 = 0
- (x+7)(x-7)
- x = -7, 7
Answer:
1. Yes
2. Yes
3. No
4. No
Step-by-step explanation:
4(-2) +9>-19 Multiply 4 and -2
-8+9>-19 Add -8 and 9
1 > -19 1 is greater than -19
4(5) +9>-19
20+9>-19
29>-19 29 is greater than -19
4(-10) +9>-19
-40+8>-19
-32>-19 -32 is not greater than -19
4(-7) +9>-19
-28+9>-19
-19>-19 -19 is not greater than -19